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-- This feed and its contents are the property of The Huffington Post, and use is subject to our terms. It may be used for personal consumption, but may not be distributed on a website.
Many kids rely on school for food their families can't afford. Two reports suggest one group is falling through the cracks: teens. Dogged by hunger, teens may try a wide range of strategies to get by.
Flood managers suspect August's big rainstorms and floods in Louisiana are becoming more common there and elsewhere because of climate change. One clue: Much of the damage was beyond the flood plain.
Full Text:
This is a vampire bat, named for its meals of blood. Scientists are discovering new links between vampire bats and rabies. Rabies will likely reach the Pacific Coast of Peru -- where the virus currently does not occur -- within four years. Researchers reported that the vector-borne virus, which is moving at a rate of 10 miles per year, is likely being carried by infected male vampire bats, and could arrive at the Peruvian coast by June 2020. Additional analyses showed that male bats, which leave their colonies upon reaching maturity, are using Andes Mountain corridors to carry the virus westward.
Image credit: D. Streicker
Kieran Williams Photography posted a photo:
Long weekends cooped up in a cramped sweaty workplace, grappling with unstable materials, your work critiqued by an harsh and judgemental boss.…
Doñana wetlands in Andalusia is home to thousands of species but has lost most of its natural water due to industry and faces ‘danger' listing by Unesco
A Spanish wetland home to 2,000 species of wildlife including around 6 million migratory birds is on track to join a Unesco world heritage danger list, according to a new report.
Doñana is an Andalusian reserve of sand dunes, shallow streams and lagoons, stretching for 540 square kilometres (209 square miles) where flamingoes feed and wild horses and Iberian lynx still roam.
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umijin posted a photo:
Rare fragile tree snail (Samoana fragilis) on dead coconut leaf.
To coincide with its tenth anniversary, this year Tent London and Super Brands London have been brought together under the new umbrella brand, London Design Fair.
It has also taken on an additional 3,500m2 space on the third floor of the Old Truman Brewery in east London, and will continue to run alongside London Design Festival as one of its design destinations.
One of several large trade shows to be found at London Design Festival, what is now London Design Fair will host the work of hundreds of product and furniture designers, with big brands and small outfits displaying side-by-side at the same venue. There are also some special projects and launches to be found…
Kit Miles and Moooi Carpets have designed the entrance to the foyer of the Old Truman Brewery this year, which will feature a colourful 150m2 carpet.
The carpet design is based on the “interplay of shadows and light”, and inspired by both Mediterranean and London architecture, according to the designers.
At 10 at Tent, ten now-established designers will show the pieces they originally debuted at Tent London, alongside their latest collections.
“This is a chance to take a moment and appreciate how far we've all come. Both the designers and the fair itself we've grown up together,' says London Design Fair founder and director, Jimmy MacDonald.
For another of this year's most promising new installations, the fair was invited to propose a project by the trade commission of the Trentino region of Italy. The result is Trentino Collaborations, which matches four British designers with Trentino-based manufacturers to create new retail products.
Max Lamb is working with a quarry company to produce granite furniture, Sebastian Cox is using a weaving technique from Trentino, Lucy Kurrein is designing leather upholstery and Giles Miller is making his first foray into natural stone tiles.
This year, India has been selected to host the first annual guest country pavilion. Co-curated by MacDonald, alongside London-based consultancy Tiipoi's founder, Spandana Gopal, This is India is designed to showcase a “renewed but intimate perspective on established and emerging design practices from India today”, according to the event organisers.
On the lineup are textile designers Leah Singh, Injiri and Safomasi, as well as industrial studio and manufacturers, Taama.
Look out for exhibition designer, Kangan Arora's installation too, featuring more than 500 hand-painted terracotta pots stacked into various colonnades and towers.
100% Norway will be returning to the London Design Fair for its 13th edition, curated by Max Fraser. It will include projects from a number of Norwegian designers, including Anderssen & Voll, Andreas Bergsaker and Vera & Kyte.
Other confirmed countries showing this year are China, Scotland Craft & Design, Swedish Design Pavilion, Nordic Design Collective, Portugal, Galicia and the Crafts Council of Italy.
London Design Fair takes place in the Old Truman Brewery, 91 Brick Lane, E1 6QL from 22-25 September. For more information, head here.
The post London Design Festival preview: London Design Fair appeared first on Design Week.
The Natural History Museum has worked with Google to create an online visitor experience allowing people to virtually walk round galleries and see exhibits.
The new online platform is available at g.co/naturalhistory and uses Google indoor street view to enable virtual visitors to “walk through” galleries such as Hintze Hall, the Treasures gallery, Dinosaurs and others.
The project has been brought to life by the Google Cultural institute, a sub-organisation of Google which has so far created online archival resources for more than 1000 museums worldwide.
Amit Sood, director of the Google Cultural Institute, says: “Technology can be used not only to make museums' treasures accessible to people around the world, but also to create new experiences for museum-goers.”
The National History Museum platform contains nine virtual exhibitions, and more than 300,000 digital specimens such as the first T-Rex fossil ever found, a narwhal's skull and visuals of extinct mammoths.
It also includes an interactive timeline spanning natural history, and more than 80 million living creatures.
The street view uses gigapixel technology which allows for high resolution photography and video, and also incorporates Google Cardboard and YouTube 360 to provide viewers with virtual reality and 360° video experiences.
The platform also has a learning resource for teachers and students: Google Expeditions uses 360° panorama and 3D images to create interactive imagery, with annotations and descriptions for educational use.
The new online exhibition < g.co/naturalhistory > can be viewed for free on the web, and through the new Google Arts & Culture mobile app available on iOS and Android.
The post Natural History Museum and Google launch virtual gallery app appeared first on Design Week.
“The London Design Festival has grown so much in its international importance; it is now one of the most important design events globally.
This year I am happy that my own area, south east London is represented with South East Makers club where I'm particularly looking forward to Ben Chatfield's talk on Saturday 24 September.
Tord Boontje, our neighbour on Charlotte Road and also at home in Brockley has organised Electro Craft. Made up of new and existing work, this show is about the craft of electronics and electronics made as craft.”
“19 Greek Street was the highlight of my London Design Festival last year, so I am really looking forward to this year's exhibition. In the midst of what can feel like a tsunami of consumerism, a gallery that champions the role of art and design to create a more ethical and sustainable future is a breath of fresh air.
From 24 September until 1 October 2016, this Soho townhouse will host “a multisensory experience [that] explores our connection with nature, with ourselves and our surroundings.” Events include design, art, books, tea, meditation and talks. I wouldn't miss it for the world.”
“LDF is a brilliant goad to exploring London, in particular seeing familiar spaces in a fresh guise. The one project currently on my list is the RIBA Regent Street Windows where artists, designers and visionaries transform the windows of iconic Regent Street shops.
It's not a part of London I'd regularly visit, but the promise of Design Haus Liberty's elegantly dangling light installations at Kate Spade is more than enough to get me there.
Their beads of light have the curious effect of being so sensual and luxurious that the formal architecture of Regent Street now provokes an erotic response!”
The post What are you most looking forward to seeing at London Design Festival? appeared first on Design Week.
Bill Burnett and Dave Evans introduced the Designing for Life course to Standford University in the US 15 years ago. Those that enrolled were younger students, mid-career professionals and retirees, who were all taught to “think like a designer.”
The basic idea is to encourage people to design a career and a life that is “meaningful, joyful and fulfilling” to help them reduce anxieties and reach clear goals.
The course has now been translated into a new book…
Choosing Happiness
Designing a career and a life requires not only that you have lots of options and good alternatives; it also requires the ability to make good choices and live into those choices with confidence, which means you accept them and don't second-guess yourself. Regardless of where you've started, what stage of life and career you are in, how great or dire you perceive your circumstances to be, we would bet our last dollar that there is one goal you all have in this life you are designing:
Happiness
Who doesn't want to be happy? We want to be happy, and we want our students to be happy, and we want you to be happy.
In life design, being happy means you choose happiness.
Choosing happiness doesn't mean you should click your heels together three times while wishing to go to your happy place. The secret to happiness in life design isn't making the right choice; it's learning to choose well.
You can do all the work of life design ideating and prototyping and taking action all leading to some really cool alternative life design plans, but this doesn't guarantee you will be happy and get what you want. Maybe you'll end up happy and getting what you want, and maybe you won't. We say “maybe” because being happy and getting what you want are not about future risks and unknowns or whether you picked the right alternatives; it's about how you choose and how you live your choices once they're made.
All of your hard work can be undone by poor choosing. Not so much by making the wrong choice (that's a risk, but, frankly, not a big one, and usually one you can recover from) as by thinking wrongly about your choosing. Adopting a good, healthy, smart life design choosing process is critical to a happy outcome. Many people are using a choosing model that cuts themselves off from their most important insights and actually prevents them from being happy with their choices after they've been made. We see it all the time, and studies agree: many people guarantee an unhappy outcome by how they approach this all-important design step of choosing.
On the flip side, choosing well almost guarantees a happy and life-giving outcome, while setting you up for more options and a better future.
The Life Design Choosing Process
In life design, the choosing process has four steps. First you gather and create some options, then you narrow down your list to your top alternatives, then finally you choose, and then, last but not least, you… agonise over that choice. Agonise over whether you've done the right thing. In fact, we encourage you to spend countless hours, days, months, or even decades agonising.
Just kidding. People can waste years agonising over the choices they've made, but agonising is a time suck. Of course we don't want you to agonise, and that is not the fourth step in the life design choosing process.
The fourth step in the process is to let go of our unnecessary options and move on, embracing our choice fully so that we can get the most from it.
We need to understand each of these choosing steps to appreciate the important difference between good choosing, which results in reliably happy outcomes and more future prospects, and bad choosing, which preconditions us for an unhappy experience.
Designing Your Life: Build a Life That Works for You, by Bill Burnett & Dave Evans is published by Penguin Random House on 15 September and is priced £14.99
The post Book: Designing Your Life appeared first on Design Week.
Futurecity, an initiative to regenerate urban spaces through art and culture, has curated an exhibition looking at the use of wit in design and branding.
Created by The Partners, and based on an updated version of Beryl McAlhone and David Stuart's celebrated graphic design book, A Smile in the Mind, the exhibition will explore how wit powers creative thinking among some of the world's biggest brands.
It is set to include original works from designers and artists including Noma Bar, Robert Brownjohn and Dominic Wilcox.
A Smile in the Mind will be go on display at The Gallery at Foyles, 107 Charing Cross Road, WC2H 0DT. For more information, head here.
Industrial designer Sebastian Bergne will be opening the doors of his Battersea studio to the public for this year's festival, showcasing some of his most famous designs from over the last 25 years in the place they were first created.
Highlights include the relaunched ring soap and lamp shade, as well as new products such as the Drop jug and Cubit beer glass.
25 Years of Editions will run Mon-Fri at 2 Ingate Place, SW8 3NS during LDF. For more information, head here.
Independent design magazine, Dirty Furniture and Italy-based The Shit Museum have teamed up to create an event exploring the potential of arguably our most primordial activity: poo.
Toilet Break features two exhibitions, including one called On the Go, featuring a new commission by Lukas Franciszkiewicz of London-Tokyo design studio Takram.
There will also be a series of talks, including one that will discuss whether gender-neutral toilets are the answer.
Toilet Break will take place at the Basement, 1 North Terrace, SW3 2BA from 17-25 September. For more information, head here.
Photography collective Rockarchive is collaborating with Brixton-based photo studio and gallery, Photofusion in an exhibition dedicated to the memory of one of the area's most famous residents: the late David Bowie.
As a visual celebration of Bowie's life and career, visitors can expect prints and images by music photographers including Ray Stevenson, Fernando Aceves, Mark Mawston and Steve Rapport, some of which are being shown in the UK for the first time.
Silhouettes and Shadows is running From 17-25 September at 17a Electric Lane, SW9 8LA. For more information, head here.
Coinciding with the Sir John Soane's Museum's seven-year restoration project, this year's festival will see the Regency kitchens open to the public for the first time
In a nod to the original use of the kitchens by Sir John Soane's servants, Below Stairs will showcase new or recent work from the likes of Edward Barber and Jay Osgerby, Jasper Morrison, Martino Gamper, and Paul Cocksedge in the reinstated space.
Each of the designers has been selected for their association with culinary and domestic design; Barber & Osgerby has designed ranges of tableware, day-to-day objects and a number of dining tables, while Martino Gamper considers himself part-chef, and part-designer.
Below Stairs will run from 13 September 2016 4 March 2017 at the Sir John Soane's Museum, 13 Lincoln's Inn Fields, WC2A 3BP. For more information, head here.
Be sure to check out these other exhibitions as well:
Show 13: Bare Minimum, by Viaduct
Designersblock London 2016, by Designersblock
London Design Festival at the V&A Engineering Season
All photos courtesy of London Design Festival 2016 supported by British Land.
The London Design Festival runs 17 25 September across various venues in London. For more information, head here.
The post London Design Festival 2016 5 must-see exhibitions appeared first on Design Week.
Online food delivery service Just Eat has rebranded, with the aim of adding “discovery” and “excitement” to the company.
The relaunch includes a new logo, app and marketing campaign, an updated website, and a new Chatbot function that can be used with Facebook Messenger.
The new visual identity aims to add a “burst of colour” to the brand, says Michael Zur-Szpiro, co-founder at venturethree.
It sees the old version of the logo italicised, and the clicking cursor icon has been removed from the centre of the “A” in “Eat”.
The red colour is retained, but used for the logotype itself, rather than the background.
A spectrum of colours has also been added underneath the logo, which will be used across delivery bikes, the website and the app. Delivery scooters will also carry lit-up delivery boxes.
The new Chatbot aims to “bring food discovery to life by engaging with customers to coach and inspire their food choices”, says Venturethree.
The feature will offer customers a selection of different restaurants they haven't previously ordered from, or help them order their regular choice.
An advertising campaign created by studio Karmarama accompanies the rebrand.
The new branding is being applied to online platforms, packaging, marketing material and to delivery staff apparel.
The new brand will be rolled out globally over the next 12 months.
The post Just Eat reveals colourful rebrand appeared first on Design Week.
German poster for LA NOTTE (Michelangelo Antonioni, Italy, 1961)
Artist: Rolf Goetze
Poster source: Kinoart.net
A new restoration of LA NOTTE opens at Film Forum in New York today.
“Adult male western lowland gorilla named ‘Makumba' studied in the Primate Habituation Programme of WWF, eats ripe indoya fruit (“Trichoscypha acuminata”) in the Dzanga Sangha Protected Areas of Central African Republic.” (Photo by Christopher Whittier)
During the course of a year, a western gorilla in the Lossi Forest of Northern Congo stuffs its face with a profusion of fruit, including figs, mulberries, and the sour-sweet monkey fruit. It's a win-win situation for both animal and plant. The gorilla gets the energy from the sugar, and the plant gets its seeds dispersed—either dropped or ahm, dropped.
But there's one fruit you won't catch a western gorilla eating: Pentadiplantra brazzeana, a bean-sized berry that resembles a red plum, nicknamed l'oubli, meaning forgetfulness, because, as the story goes, the fruit tastes so sweet that in seeking it out, children may forget their mothers. So why don't these gorillas ingest what—judging by their sweetness—seem to be sugar-filled energy bombs?
New research suggests an answer: Because of two genetic mutations, both western gorillas and the closely related eastern gorillas don't taste the P. brazzeana fruit as sweet. The research was reported in the American Journal of Physical Anthropology.
It has been known since 1994 that the sweet component of P. brazzeana isn't sugar at all, but rather a sweet-tasting protein known as brazzein. It seems the plant has evolved to entice animals to eat its fruit, which packs the sweetness of a much larger, sugary fruit through only a bit of protein, while the gorillas appear to have evolved to not fall for the trick.
“Pentadiplandra brazzeana,”or oubli fruit.
“From an evolutionary standpoint, if the gorillas were eating a lot of the fruit but not obtaining the caloric benefit from it, it would give them a disadvantage over time because they wouldn't be getting the nutrition that they need. So by not eating it and eating other things, they're benefiting from [the mutations],” says Kristin Saltonstall, a co-author of the study from the Smithsonian Tropical Research Institute in Panama.
The researchers, including co-authors Brenda Bradley from George Washington University and her graduate student Elaine Guevara from GWU and Yale University, happened upon these findings while conducting a survey of variation in taste receptors for 57 primates and other animals. By looking at a particular protein called T1R3 found in taste buds and essential for tasting sweetness, the researchers saw that the T1R3 of many old world monkeys and apes is composed of the same amino acids, the protein's building blocks. These animals also are known to taste brazzein as sweet.
But since mice, who don't taste brazzein as sweet, have been shown in a 2004 study by a team at the Mount Sinai School of Medicine to have two different amino acids in key spots along the protein, Bradley and her team took note when they saw that western gorillas also have two different amino acids in the same spots. Eastern gorillas, who share ancestry with western gorillas 25-30 million years back, have the same swapped-out amino acids as western gorillas.
“You see these multiple mutations in gorillas, and they just happen to be (I'm using air quotes here) at those sites that would prevent them from being deceived. I think this is really interesting,” Bradley says.
Adult male western lowland gorilla ‘Makumba' eats ripe indoya fruit (“Trichoscypha acuminata”) in the Dzanga Sangha Protected Areas of Central African Republic. (Photo by Christopher Whittier)
Paulo Guimarães Jr., a coevolution researcher who was not involved in this study,
is fascinated by this “molecular evidence of potential coevolution,” he writes in an email. He has a few misgivings, though. “I missed some experimental manipulation exploring if and how gorillas avoid brazzein-rich fruits. Also, it is not clear to me why the ‘taster' phenotype was fixed in old world monkeys,” he continues.
Another way to think about the latter point is to ask, why haven't other old world monkeys and apes developed mutations in the same amino acids as eastern and western gorillas have? There certainly has been plenty of time—35 million years—for this to have happened.
“That's a question, perhaps, of historical contingency. Mutation is a random process. So it might be that mutations haven't happened,” Bradley says. Or it could be possible, she continues, that these other species get some benefit from the fruit, and so there wouldn't be strong selection for this particular mutation.
To say for sure, though, that the mutations indicate coevolutionary adaptations in response to brazzein's trickery, more work needs to be done on the natural ecology of flowering plants and their interaction with animal seed dispersers.
“We're not proving absolutely that it's an adaptation—it's really hard to prove that any trait is an adaptation that evolved via natural selection. The best we can do at this stage is say that it's a really interesting coincidence and something worth following up on,” Bradley says.
The post Gorillas Aren't Tricked By a Faux Sugary Fruit Thanks to a Mutation appeared first on Smithsonian Insider.
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NGC 3718, NGC 3729 and other galaxies shown above have been analyzed using machine learning algorithms that can be "taught" to recognize astrophysical similarities. The same technology is now being applied to cancer images, as well. Every day, NASA spacecraft beam down hundreds of petabytes of data, all of which has to be codified, stored and distributed to scientists across the globe. Increasingly, artificial intelligence is helping to "read" this data as well, highlighting similarities between datasets that scientists might miss.
For the past 15 years, the big data techniques pioneered by NASA's Jet Propulsion Laboratory in Pasadena, California, have been revolutionizing biomedical research. On Sept. 6, 2016, JPL and the National Cancer Institute (NCI), part of the National Institutes of Health, renewed a research partnership through 2021, extending the development of data science that originated in space exploration and is now supporting new cancer discoveries.
The NCI-supported Early Detection Research Network (EDRN) is a consortium of biomedical investigators who share anonymized data on cancer biomarkers, chemical or genetic signatures related to specific cancers. Their goal is to pool all their research data into a single, searchable network, with the goal of translating their collective work into techniques for early diagnosis of cancer or cancer risk.
In the time they've worked together, JPL and EDRN's efforts have led to the discovery of six new Food and Drug Administration-approved cancer biomarkers and nine biomarkers approved for use in Clinical Laboratory Improvement Amendments labs. The FDA has approved each of these biomarkers for use in cancer research and diagnosis. These agency-approved biomarkers have been used in more than 1 million patient diagnostic tests worldwide.
"After the founding of EDRN in 2000, the network needed expertise to take data from multiple studies on cancer biomarkers and create a single, searchable network of research findings for scientists," said Sudhir Srivastava, chief of NCI's Cancer Biomarkers Research Group and head of EDRN. JPL had decades of experience doing similar work for NASA, where spacecraft transmit hundreds of petabytes of data to be coded, stored and distributed to scientists across the globe.
Dan Crichton, the head of JPL's Center for Data Science and Technology, a joint initiative with Caltech in Pasadena, California, helped establish a JPL-based informatics center dedicated to supporting EDRN's big data efforts. In the renewed partnership, JPL is expanding its data science efforts to research and applying technologies for additional NCI-funded programs. Those programs include EDRN, the Consortium for Molecular and Cellular Characterization of Screen-Detected Lesions, and the Informatics Technology for Cancer Research initiative.
"From a NASA standpoint, there are significant opportunities to develop new data science capabilities that can support both the mission of exploring space and cancer research using common methodological approaches," Crichton said. "We have a great opportunity to perfect those techniques and grow JPL's data science technologies, while serving our nation.
Crichton said JPL has led the way when it comes to taking data from raw observations to scientific conclusions. One example: JPL often deals with measurements from a variety of sensors -- say, cameras and mass spectrometers. Both can be used to study a star, planet or similar target object. But it takes special software to recognize that readings from very different instruments relate to one another.
There's a similar problem in cancer research, where readings from different biomedical tests or instruments require correlation with one another. For that to happen, data have to be standardized, and algorithms must be "taught" to know what they're looking for.
Since the time of its founding, EDRN's major challenge has been access. Research centers all over the United States had large numbers of biomarker specimens, but each had its own way of labeling, storing and sharing their datasets. Ten sites may have high-quality specimens for study, but if their common data elements -- age of patient, cancer type and other characteristics - aren't listed uniformly, they can't be studied as a whole.
"We didn't know if they were early-stage or late-stage specimens, or if any level of treatment had been tried," Srivastava said. "And JPL told us, 'We do this type of thing all the time! That's how we manage our Planetary Data System.'"
As the network has developed, it has added members from dozens of institutions, including Dartmouth College's Geisel School of Medicine; Harvard Medical School's Massachusetts General Hospital; Stanford's NIST Genome-Scale Measurements Group; University of Texas' MD Anderson Cancer Center; and numerous others.
Christos Patriotis, program director at NCI's Cancer Biomarkers Research Group, said the network's members now include international researchers from the U.K., China, Japan, Australia, Israel and Chile.
"The more we expand, the more data we integrate," Patriotis said. "Instead of being silos, now our partners can integrate their findings. Each system can speak to the others."
As JPL and NCI's collaboration advances, next steps include image recognition technology, such as helping EDRN archive images of cancer specimens. Those images could be analyzed by computer vision, which is currently used to spot similarities in star clusters and other astrophysics research.
In the near future, Crichton said, machine learning algorithms could compare a CT scan with an archive of similar images, searching for early signs of cancer based on a patient's age, ethnic background and other demographics.
"As we develop more automated methods for detecting and classifying features in images, we see great opportunities for enhancing data discovery," Crichton said. "We have examples where algorithms for detection of features in astronomy images have been transferred to biology and vice-versa."
The Daily Galaxy via http://edrn.cancer.gov
Image credit: Catalina Sky Survey, U of Arizona, and Catalina Realtime Transient Survey, Caltech.
NASA Goddard Photo and Video posted a photo:
Dr. Holdren (left), Administrator Bolden (center) and Dr. Michele Gates (right) discuss the ARM mission during a live NASA TV briefing. Behind them is a mockup of robotic capture module for the Asteroid Redirect Mission.
More info: Asteroid Redirect Mission Update On Sept. 14, 2016, NASA provided an update on the Asteroid Redirect Mission (ARM) and how it contributes to the agency's journey to Mars and protection of Earth. The presentation took place in the Robotic Operations Center at NASA's Goddard Space Flight Center in Greenbelt, Maryland. Assistant to the President for Science and Technology Dr. John P. Holdren, NASA Administrator Charles Bolden and NASA's ARM Program Director, Dr. Michele Gates discussed the latest update regarding the mission. They explained the mission's scientific and technological benefits and how ARM will demonstrate technology for defending Earth from potentially hazardous asteroids. The briefing aired live on NASA TV and the agency's website. For more information about ARM go to www.nasa.gov/arm.
Credit: NASA/Goddard/Debbie Mccallum
NASA image use policy.
NASA Goddard Space Flight Center enables NASA's mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA's accomplishments by contributing compelling scientific knowledge to advance the Agency's mission.
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"Who would have thought that Pluto is a graffiti artist, spray-painting its companion with a reddish stain that covers an area the size of New Mexico?" asked Will Grundy, a New Horizons co-investigator from Lowell Observatory in Flagstaff, Arizona, and lead author of the paper. "Every time we explore, we find surprises. Nature is amazingly inventive in using the basic laws of physics and chemistry to create spectacular landscapes."
In June 2015, when the cameras on NASA's approaching New Horizons spacecraft first spotted the large reddish polar region on Pluto's largest moon, Charon, mission scientists knew two things: they'd never seen anything like it elsewhere in our solar system, and they couldn't wait to get the story behind it.
Over the past year, after analyzing the images and other data that New Horizons has sent back from its historic July 2015 flight through the Pluto system, the scientists think they've solved the mystery. As they detail this week in the international scientific journal Nature, Charon's polar coloring comes from Pluto itself as methane gas that escapes from Pluto's atmosphere and becomes "trapped" by the moon's gravity and freezes to the cold, icy surface at Charon's pole. This is followed by chemical processing by ultraviolet light from the sun that transforms the methane into heavier hydrocarbons and eventually into reddish organic materials called tholins.
NASA's New Horizons spacecraft captured the high-resolution, enhanced color view of Pluto's largest moon, Charon, shown below of the page just before closest approach on July 14, 2015. The image combines blue, red and infrared images taken by the spacecraft's Ralph/Multispectral Visual Imaging Camera (MVIC); the colors are processed to best highlight the variation of surface properties across Charon. Scientists have learned that reddish material in the north (top) polar region informally named Mordor Macula is chemically processed methane that escaped from Pluto's atmosphere onto Charon. Charon is 754 miles (1,214 kilometers) across; this image resolves details as small as 1.8 miles (2.9 kilometers).
"This study solves one of the greatest mysteries we found on Charon, Pluto's giant moon," said Alan Stern, New Horizons principal investigator from the Southwest Research Institute, and a study co-author. "And it opens up the possibility that other small planets in the Kuiper Belt with moons may create similar, or even more extensive 'atmospheric transfer' features on their moons."
The team combined analyses from detailed Charon images obtained by New Horizons with computer models of how ice evolves on Charon's poles. Mission scientists had previously speculated that methane from Pluto's atmosphere was trapped in Charon's north pole and slowly converted into the reddish material, but had no models to support that theory.
The New Horizons team dug into the data to determine whether conditions on the Texas-sized moon (with a diameter of 753 miles or 1,212 kilometers) could allow the capture and processing of methane gas. The models using Pluto and Charon's 248-year orbit around the sun show some extreme weather at Charon's poles, where 100 years of continuous sunlight alternate with another century of continuous darkness. Surface temperatures during these long winters dip to -430 Fahrenheit (-257 Celsius), cold enough to freeze methane gas into a solid.
"The methane molecules bounce around on Charon's surface until they either escape back into space or land on the cold pole, where they freeze solid, forming a thin coating of methane ice that lasts until sunlight comes back in the spring," Grundy said. But while the methane ice quickly sublimates away, the heavier hydrocarbons created from it remain on the surface.
The models also suggested that in Charon's springtime the returning sunlight triggers conversion of the frozen methane back into gas. But while the methane ice quickly sublimates away, the heavier hydrocarbons created from this evaporative process remain on the surface.
Sunlight further irradiates those leftovers into reddish material called tholins that has slowly accumulated on Charon's poles over millions of years. New Horizons' observations of Charon's other pole, currently in winter darkness and seen by New Horizons only by light reflecting from Pluto, or "Pluto-shine" confirmed that the same activity was occurring at both poles.
The Daily Galaxy via NASA
Image credit: NASA/JHUAPL/SwRI; image at top of page, http://www.solstation.com/stars/charon2.jpg
An experiment to explore the aftermath of cosmic dawn, when stars and galaxies first lit up the universe led by the University of California, Berkeley, called HERA, , the Hydrogen Epoch of Reionization Array, 240 radio dishes aimed at the southern sky near Carnarvon, South Africa, will explore the billion-year period after hydrogen gas collapsed into the first stars, perhaps 100 million years after the Big Bang, through the ignition of stars and galaxies throughout the universe. These first brilliant objects flooded the universe with ultraviolet light that split or ionized all the hydrogen atoms between galaxies into protons and electrons to create the universe we see today.
"The first galaxies lit up and started ionizing bubbles of gas around them, and soon these bubbles started percolating and intersecting and making bigger and bigger bubbles," said Aaron Parsons, a UC Berkeley associate professor of astronomy and principal investigator for HERA. "Eventually, they all intersected and you got this über bubble, leaving the universe as we observe it today: Between galaxies the gas is essentially all ionized."
That's the theory, anyway. HERA hopes for the first time to observe this key cosmic milestone and then map the evolution of reionization to about 1 billion years after the Big Bang.
"We have leaned a ton about the cosmology of our universe from studies of the cosmic microwave background, but those experiments are observing just the thin shell of light that was emitted from a bunch of protons and electrons that finally combined into neutral hydrogen 380,000 years after the Big Bang," he said. "We know from these experiments that the universe started out neutral, and we know that it ended ionized, and we are trying to map out how it transitioned between those two."
The 13.8-billion-year cosmic timeline shown above indicates the era shortly after the Big Bang observed by the Planck satellite, the era of the first stars and galaxies observed by HERA and the era of galaxy evolution to be observed by NASA's future James Webb Space Telescope.
"Before the cosmic dawn, the universe glowed from the cosmic microwave background radiation, but there weren't stars lighting up the universe," said David DeBoer, a research astronomer in UC Berkeley's Radio Astronomy Laboratory. "At some point the neutral hydrogen seeded the stars and black holes and galaxies that relit the universe and led to the epoch of reionization."
The HERA array, which could eventually expand to 350 telescopes, consists of radio dishes staring fixedly upwards, measuring radiation originally emitted at a wavelength of 21 centimeters the hyperfine transition in the hydrogen atom that has been red-shifted by a factor of 10 or more since it was emitted some 13 billion years ago. The researchers hope to detect the boundaries between bubbles of ionized hydrogen invisible to HERA and the surrounding neutral or atomic hydrogen.
By tuning the receiver to different wavelengths, they can map the bubble boundaries at different distances or redshifts to visualize the evolution of the bubbles over time.
"HERA can also tell us a lot about how galaxies form," Parsons said. "Galaxies are very complex organisms that feed back on themselves, regulating their own star formation and the gas that falls into them, and we don't really understand how they live, especially at this early time when flowing hydrogen gas ends up as complex structures with spiral arms and black holes in the middle. The epoch of reionization is a bridge between the cosmology that we can theoretically calculate from first principles and the astrophysics we observe today and try to understand."
UC Berkeley's partners in HERA are the University of Washington, UCLA, Arizona State University, the National Radio Astronomical Observatory, the University of Pennsylvania, the Massachusetts Institute of Technology, Brown University, the University of Cambridge in the UK, the Square Kilometer Array in South Africa and the Scuola Normale Superiore in Pisa, Italy.
Other collaborators are the Harvard-Smithsonian Center for Astrophysics in Cambridge, Massachusetts, the University of KwaZulu Natal, the University of Western Cape and Rhodes University, all in South Africa, and California State Polytechnic University in Pomona.
"Astronomers want to know what happened to the universe after it emerged from its so-called 'dark ages'," said Rich Barvainis, director of the National Science Foundation program that funds HERA. "HERA will help us answer that question, not by studying the primordial stars and galaxies themselves, but rather by studying how these objects changed the nature of intergalactic space."
The key to detecting these percolating bubbles of ionized gas from the epoch of reionization is a receiver that can detect radio signals from neutral hydrogen a million times fainter than nearby radio noise.
"The foreground noise, mostly synchrotron emission from electrons spiraling in magnetic fields in our own galaxy, is about a million times stronger than the signal," DeBoer said. "This is a real problem, because it's like looking for a firefly in front of an incredibly powerful searchlight. We are trying to see the firefly and filter out the searchlight."
The HERA collaboration expects eventually to expand to 330 radio dishes in the core array, each pointed straight up to measure radiation originally emitted some 13 billion years ago. Twenty outrigger dishes (not shown) are also planned, bringing the array up to 350 dishes total.
Previous experiments, such as the UC Berkeley-led Precision Array Probing the Epoch of Reionization (PAPER) in South Africa and the Murchison Widefield Array (MWA) in Australia, have not been sensitive enough to detect this signal, but with larger dishes and better signal processing, HERA should do the trick.
"HERA is a unique, next-generation instrument building on the heritage of PAPER," said Parsons, who helped build PAPER a decade ago when he was a graduate student working with the late UC Berkeley astronomer Donald Backer. "It is on the same site as PAPER, we are using a lot of the same equipment, but importantly we have brought together a lot more collaborators, including a lot of the U.S. team that has been working with MWA."
The strategy is to build a hexagonal array of radio dishes that minimizes the noise, such as radio reflections in the dishes and wires, that would obscure the signal. A supercomputer's worth of field programmable gate arrays will cross-correlate the signals from the antennas to finely map a 10-degree swath of southern sky centered at minus-30 degrees latitude. Using a technique adopted from PAPER, they will employ this computer processing power to eliminate the slowly varying noise across the wavelength spectrum 150-350 centimeters to reveal the rapidly varying signal from neutral hydrogen as they tune across the radio spectrum.
Astronomers have already discovered hints of reionization, Parsons said. Measurements of the polarization of the cosmic microwave background radiation show that some of the photons emitted at that early time in the universe have been scattered by intervening electrons possibly created by the first stars and galaxies. And galaxy surveys have turned up some very distant galaxies that show attenuation by intervening intergalactic neutral hydrogen, perhaps the last bit remaining before reionization was complete.
"We have an indication that reionization should have happened, and we are getting hints of when it might have ended, but we don't have anything telling us what is going on during it.," Parsons added. "That is what we hope to learn with HERA, the actual step-by-step process of how reionization happened."
Once astronomers know the reionization process, they can calculate the scattering of radiation from the era of recombination the cosmic background radiation, or CMB and remove some of the error that makes it hard to detect the gravitational waves produced by inflation shortly after the Big Bang.
"There is a lot of cosmology you can do with HERA," Parsons said. "We have learned so much from the thin shell of the CMB, but here we will be looking at a full three-dimensional space. Something like 80 percent of the observable universe can be mapped using the 21-centimeter line, so this opens up the next generation of cosmology."
Parsons and DeBoer compare HERA to the first experiment to detect the cosmic microwave background radiation, the Cosmic Background Explorer, which achieved its goal in 1992 and won for its leaders George Smoot of UC Berkeley and Lawrence Berkeley National Laboratory, and John Mather of NASA the 2006 Nobel Prize in Physics.
"Ultimately, the goal is to get to the point were we are actually making images, just like the CMB images we have seen," DeBoer said. "But that is really, really hard, and we need to learn a fair bit about what we are looking for and the instruments we need to get there. We hope that what we develop will allow the Square Kilometer Array or another big project to actually make these images and get much more science from this pivotal epoch in our cosmic history."
The Daily Galaxy via University of California - Berkeley
The majestic auroras have captivated humans for thousands of years, but their nature -- the fact that the lights are electromagnetic and respond to solar activity -- was only realized in the last 150 years. Thanks to coordinated multi-satellite observations and a worldwide network of magnetic sensors and cameras, close study of auroras has become possible over recent decades. Yet, auroras continue to mystify, dancing far above the ground to some, thus far, undetected rhythm.
Using data from NASA's Time History of Events and Macroscale Interactions during Substorms, or THEMIS, scientists have observed Earth's vibrating magnetic field in relation to the northern lights dancing in the night sky over Canada. THEMIS is a five-spacecraft mission dedicated to understanding the processes behind auroras, which erupt across the sky in response to changes in Earth's magnetic environment, called the magnetosphere.
These new observations allowed scientists to directly link specific intense disturbances in the magnetosphere to the magnetic response on the ground. A paper on these findings was published in Nature Physics on Sept. 12, 2016.
"We've made similar observations before, but only in one place at a time -- on the ground or in space," said David Sibeck, THEMIS project scientist at NASA's Goddard Space Flight Center in Greenbelt, Maryland, who did not participate in the study. "When you have the measurements in both places, you can relate the two things together."
Understanding how and why auroras occur helps us learn more about the complex space environment around our planet. Radiation and energy in near-Earth space can have a variety of effects on our satellites -- from disrupting their electronics to increasing frictional drag and interrupting communication or navigation signals. As our dependence on GPS grows and space exploration expands, accurate space weather forecasting becomes ever more important.
The artist's rendering below (not to scale) of a cross-section of the magnetosphere, with the solar wind on the left in yellow and magnetic field lines emanating from the Earth in blue. The five THEMIS probes were well-positioned to directly observe one particular magnetic field line as it oscillated back and forth roughly every six minutes. In this unstable environment, electrons in near-Earth space, depicted as white dots, stream rapidly down magnetic field lines towards Earth's poles. There, they interact with oxygen and nitrogen particles in the upper atmosphere, releasing photons and brightening a specific region of the aurora. (Emmanuel Masongsong/UCLA EPSS/NASA)
The space environment of our entire solar system, both near Earth and far beyond Pluto, is determined by the sun's activity, which cycles and fluctuates through time. The solar system is filled with solar wind, the constant flow of charged particles from the sun. Most of the solar wind is deflected from Earth by our planet's protective magnetosphere.
However, under the right conditions, some solar particles and energy can penetrate the magnetosphere, disturbing Earth's magnetic field in what's known as a substorm. When the solar wind's magnetic field turns southward, the dayside, or sun-facing side, of the magnetosphere contracts inward. The back end, called the magnetotail, stretches out like a rubber band. When the stretched magnetotail finally snaps back, it starts to vibrate, much like a spring moving back and forth. Bright auroras can occur during this stage of the substorm.
In this unstable environment, electrons in near-Earth space stream rapidly down magnetic field lines towards Earth's poles. There, they interact with oxygen and nitrogen particles in the upper atmosphere, releasing photons to create swaths of light that snake across the sky.
To map the auroras' electric dance, the scientists imaged the brightening and dimming aurora over Canada with all-sky cameras. They simultaneously used ground-based magnetic sensors across Canada and Greenland to measure electrical currents during the geomagnetic substorm. Further out in space, the five THEMIS probes were well-positioned to collect data on the motion of the disrupted field lines.
The scientists found the aurora moved in harmony with the vibrating field line. Magnetic field lines oscillated in a roughly six-minute cycle, or period, and the aurora brightened and dimmed at the same pace.
"We were delighted to see such a strong match," said Evgeny Panov, lead author and researcher at the Space Research Institute of the Austrian Academy of Sciences in Graz. "These observations reveal the missing link in the conversion of magnetic energy to particle energy that powers the aurora."
The brightening and dimming of the aurora corresponds to the motion of the electrons and magnetic field lines.
"During the course of this event, the electrons are flinging themselves Earthwards, then bouncing back off the magnetosphere, then flinging themselves back," Sibeck said.
When waves crash on the beach, they splash and froth, and then recede. The wave of electrons adopt a similar motion. The aurora brightens when the wave of electrons slams into the upper atmosphere, and dims when it ricochets off.
Before this study, scientists hypothesized that oscillating magnetic field lines guide the aurora. But the effect had not yet been observed because it requires the THEMIS probes to be located in just the right place over the ground-based sensors, to properly coordinate the data. In this study, scientists collected THEMIS data at a time when the probes were fortuitously positioned to observe the substorm.
THEMIS is a mission of NASA's Explorer program, which is managed by Goddard. University of California, Berkeley's Space Sciences Laboratory oversees mission operations. The all-sky imagers and magnetometers are jointly operated by UC Berkeley, UCLA, University of Calgary and University of Alberta in Canada.
The Daily Galaxy via NASA/Goddard Space Flight Center
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The first catalog of more than a billion stars from ESA's Gaia satellite was published today the largest all-sky survey of celestial objects to date. On its way to assembling the most detailed 3-D map ever made of our Milky Way galaxy, Gaia has pinned down the precise position on the sky and the brightness of 1142 million stars.
"Today's release gives us a first impression of the extraordinary data that await us and that will revolutionize our understanding of how stars are distributed and move across our Galaxy," says Alvaro Giménez, ESA's Director of Science.
Launched 1000 days ago, Gaia started its scientific work in July 2014. This first release is based on data collected during its first 14 months of scanning the sky, up to September 2015.
"The beautiful map we are publishing today shows the density of stars measured by Gaia across the entire sky, and confirms that it collected superb data during its first year of operations," says Timo Prusti, Gaia project scientist at ESA.
The stripes and other artefacts in the image reflect how Gaia scans the sky, and will gradually fade as more scans are made during the five-year mission.
Transforming the raw information into useful and reliable stellar positions to a level of accuracy never possible before is an extremely complex procedure, entrusted to a pan-European collaboration of about 450 scientists and software engineers: the Gaia Data Processing and Analysis Consortium, or DPAC.
In addition to processing the full billion-star catalogue, the scientists looked in detail at the roughly two million stars in common between Gaia's first year and the earlier Hipparcos and Tycho-2 Catalogues, both derived from ESA's Hipparcos mission, which charted the sky more than two decades ago.
By combining Gaia data with information from these less precise catalogues, it was possible to start disentangling the effects of 'parallax' and 'proper motion' even from the first year of observations only. Parallax is a small motion in the apparent position of a star caused by Earth's yearly revolution around the Sun and depends on a star's distance from us, while proper motion is due to the physical movement of stars through the Galaxy.
In this way, the scientists were able to estimate distances and motions for the two million stars spread across the sky in the combined TychoGaia Astrometric Solution, or TGAS.
This new catalog is twice as precise and contains almost 20 times as many stars as the previous definitive reference for astrometry, the Hipparcos Catalog.
As part of their work in validating the catalogue, DPAC scientists have conducted a study of open stellar clusters groups of relatively young stars that were born together that clearly demonstrates the improvement enabled by the new data.
"With Hipparcos, we could only analyse the 3-D structure and dynamics of stars in the Hyades, the nearest open cluster to the Sun, and measure distances for about 80 clusters up to 1600 light-years from us," says Antonella Vallenari from the Istituto Nazionale di Astrofisica (INAF) and the Astronomical Observatory of Padua, Italy. "But with Gaia's first data, it is now possible to measure the distances and motions of stars in about 400 clusters up to 4800 light-years away.
For the closest 14 open clusters, the new data reveal many stars surprisingly far from the centre of the parent cluster, likely escaping to populate other regions of the Galaxy."
Many more stellar clusters will be discovered and analysed in even greater detail with the extraordinary data that Gaia continues to collect and that will be released in the coming years.
The new stellar census also contains 3194 variable stars, stars that rhythmically swell and shrink in size, leading to periodic brightness changes.
Many of the variables seen by Gaia are in the Large Magellanic Cloud, one of our galactic neighbours, a region that was scanned repeatedly during the first month of observations, allowing accurate measurement of their changing brightness.
Details about the brightness variations of these stars, 386 of which are new discoveries, are published as part of today's release, along with a first study to test the potential of the data.
"Variable stars like Cepheids and RR Lyraes are valuable indicators of cosmic distances," explains Gisella Clementini from INAF and the Astronomical Observatory of Bologna, Italy.
"While parallax is used to measure distances to large samples of stars in the Milky Way directly, variable stars provide an indirect, but crucial step on our 'cosmic distance ladder', allowing us to extend it to faraway galaxies."
This is possible because some kinds of variable stars are special. For example, in the case of Cepheid stars, the brighter they are intrinsically, the slower their brightness variations. The same is true for RR Lyraes when observed in infrared light. The variability pattern is easy to measure and can be combined with the apparent brightness of a star to infer its true brightness.
This is where Gaia steps in: in the future, scientists will be able to determine very accurate distances to a large sample of variable stars via Gaia's measurements of parallaxes. With those, they will calibrate and improve the relation between the period and brightness of these stars, and apply it to measure distances beyond our Galaxy. A preliminary application of data from the TGAS looks very promising.
"This is only the beginning: we measured the distance to the Large Magellanic Cloud to test the quality of the data, and we got a sneak preview of the dramatic improvements that Gaia will soon bring to our understanding of cosmic distances," adds Dr Clementini.
Knowing the positions and motions of stars in the sky to astonishing precision is a fundamental part of studying the properties and past history of the Milky Way and to measure distances to stars and galaxies, but also has a variety of applications closer to home for example, in the Solar System.
On 19 July 2016, Pluto passed in front of the faint star UCAC4 345-180315, offering a rare chance to study the atmosphere of the dwarf planet as the star first gradually disappeared and then reappeared behind Pluto (below).
This stellar occultation was visible only from a narrow strip stretching across Europe, similar to the totality path that a solar eclipse lays down on our planet's surface. Precise knowledge of the star's position was crucial to point telescopes on Earth, so the exceptional early release of the Gaia position for this star, which was 10 times more precise than previously available, was instrumental to the successful monitoring of this rare event.
Early results hint at a pause in the puzzling pressure rise of Pluto's tenuous atmosphere, something that has been recorded since 1988 in spite of the dwarf planet moving away from the Sun, which would suggest a drop in pressure due to cooling of the atmosphere.
These three examples demonstrate how Gaia's present and future data will revolutionize all areas of astronomy, allowing us to investigate our place in the Universe, from our local neighborhood, the Solar System, to Galactic and even grander, cosmological scales.
This first data release shows that the mission is on track to achieve its ultimate goal: charting the positions, distances, and motions of one billion stars about 1% of the Milky Way's stellar content in three dimensions to unprecedented accuracy.
"The road to today has not been without obstacles: Gaia encountered a number of technical challenges and it has taken an extensive collaborative effort to learn how to deal with them," says Fred Jansen, Gaia mission manager at ESA.
The Daily Galaxy via European Space Agency
Image credit: top of page, an all-sky view of stars in our Galaxy the Milky Way and neighboring galaxies, based on the first year of observations from ESA's Gaia satellite, from July 2014 to September 2015. Credit: ESA/Gaia/DPAC. Pluto image, B. Sicardy (LESIA, Observatoire de Paris, France), P. Tanga (Observatoire de la Côte d'Azur, Nice, France), A. Carbognani (Osservatorio Astronomico Valle d'Aosta, Italy), Rodrigo Leiva (LESIA, Observatoire de Paris)
europeanspaceagency posted a photo:
An all-sky view of stars in our Galaxy the Milky Way and neighbouring galaxies, based on the first year of observations from ESA's Gaia satellite, from July 2014 to September 2015.
This map shows the density of stars observed by Gaia in each portion of the sky. Brighter regions indicate denser concentrations of stars, while darker regions correspond to patches of the sky where fewer stars are observed.
The Milky Way is a spiral galaxy, with most of its stars residing in a disc about 100 000 light-years across and about 1000 light-years thick. This structure is visible in the sky as the Galactic Plane the brightest portion of this image which runs horizontally and is especially bright at the centre.
Darker regions across the Galactic Plane correspond to dense clouds of interstellar gas and dust that absorb starlight along the line of sight.
Many globular and open clusters groupings of stars held together by their mutual gravity are also sprinkled across the image.
Globular clusters, large assemblies of hundreds of thousands to millions of old stars, are mainly found in the halo of the Milky Way, a roughly spherical structure with a radius of about 100 000 light-years, and so are visible across the image.
Open clusters are smaller assemblies of hundreds to thousands of stars and are found mainly in the Galactic Plane.
The two bright objects in the lower right of the image are the Large and Small Magellanic Clouds, two dwarf galaxies orbiting the Milky Way. Other nearby galaxies are also visible, most notably Andromeda (also known as M31), the largest galactic neighbour to the Milky Way, in the lower left of the image. Below Andromeda is its satellite, the Triangulum galaxy (M33).
A number of artefacts are also visible on the image. These curved features and darker stripes are not of astronomical origin but rather reflect Gaia's scanning procedure. As this map is based on observations performed during the mission's first year, the survey is not yet uniform across the sky.
These artefacts will gradually disappear as more data are gathered during the five-year mission.
High resolution versions of the Gaia map, with transparent background, are available to download from: sci.esa.int/gaia/58209
An annotated version of this image is available here.
Credit: ESA/Gaia/DPAC
Acknowledgement: A. Moitinho & M. Barros (CENTRA University of Lisbon), on behalf of DPAC
How a community-supported collective of filmmakers wants to rewrite the rules of indie film.
To celebrate the recent release of ‘For the Love of Spock,' Adam Nimoy's documentary tribute to his father and the iconic character he…
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Chalcid wasp (Aprostocetus sp.) collected in Mingan Archipelago National Park Reserve, Quebec, Canada, and photographed at the Centre for Biodiversity Genomics (sample ID: BIOUG12652-A10; specimen record: http://www.boldsystems.org/index.php/Public_RecordView?processid=CNMIH1932-14 BIN: http://www.boldsystems.org/index.php/Public_BarcodeCluster?clusteruri=BOLD:ACW3983)
the large orange life rafts, anchored to the palace's windows, aim to draw attention to the fate of refugees who risk their lives daily.
The post ai weiwei to wrap the façade of florence's palazzo strozzi in rubber life boats appeared first on designboom | architecture & design magazine.
The European Space Agency [ESA] have released the most detailed map of the Milky Way galaxy to date, based on the first delivery of data from the ESA's Gaia probe, which was launched in 2013. The map represents 1% of the Milky Way's stars, but this map is at least 20 times more complete than any previous representations
Continue reading...The map, based on observations from the European Space Agency's Gaia probe, will transform what we know about the galaxy, say scientists
Astronomers have unveiled the most detailed map to date of the Milky Way, after charting the positions of more than 1bn stars with stunning precision.
The map, based on observations from the European Space Agency's Gaia probe, still only represents about 1% of the Milky Way's stars, but is already 20 times more complete than any previous observations of the night sky.
Continue reading...Victorian Society says 2016 list, featuring no structures in London or south-east, may reflect ‘vastly different financial climate'
From the former home of explorer Gertrude Bell to a landmark of the Grimsby skyline, seven of Britain's 10 most endangered historic buildings are in the north of England.
The annual list of once-celebrated structures, compiled by the Victorian Society, is dominated by “at-risk” buildings in the north and for the first time features none in London or the south-east.
Related: Lost in the Great Fire: which London buildings disappeared in the 1666 blaze?
Continue reading...From steamrooms suspended under remote Czech bridges to the Swedish robot sauna straight out of Star Wars, the spa experience is getting a guerilla makeover
An awkward grey creature stands on the edge of Frihamnen harbour in Gothenburg. It looks like a homemade robot elephant, cobbled together from industrial remains strewn around the dock. Clad in rusty sheets of corrugated steel, its truncated body stands on gawky little legs, lurching this way and that with cartoonish wonkiness.
“We wanted people to be curious about what this thing could be,” says Francesco Apuzzo of Raumlabor, the Berlin-based architectural collective behind this mysterious structure. It could be the chubby cousin of one of the laser-wielding AT-AT killing machines from Star Wars, but it has a more benign purpose. “People have to climb up the steps and only then do they discover the soft wooden interior of the sauna within.”
Related: Carnival of design
We're not sauna obsessives … but with everyone stripped of clothing, the sauna is ultimately a democratic space
Related: The naked truth about saunas | Andy Symington
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The hypocrisy from the majority members defending scientific freedom given their previous actions towards NOAA+Tom Karl is breathtaking
— Gavin Schmidt (@ClimateOfGavin) September 14, 2016
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Read more: Bernie Sanders, Climate Change, Obama, Environment, Native Americans, Activism, Oil and Gas, Green Energy, Dakota Access Pipeline, Politics News
In September, TU will be feeding you a heavy dose of stories about public lands. From the Golden Trout wilderness in California to the Green Mountains of Vermont, public lands are hugely important to wild and native fish. In most Western states, public lands comprise more than 70 percent of the available habitat for trout, and virtually all of the strongholds for native trout.
My father is the sixth generation of our family to grow up in Newark, NJ. Growing up, the closest public land we had was a local county park called Tuers, where I shot countless hours of hoop. Except for visiting family in Ireland, I didn't leave the Garden State until college in Vermont, and there discovered the Green Mountain National Forest. I spent many hours in that forest catching native brook trout.
After graduation I took a long, slow trip across the country with my dog, Gus, and a big box filled with Dinty Moore beef stew. Gus and I walked the Natchez Trace in Mississippi. We hiked the Smokies in Tennessee. We took pictures of fields of Black-eyed Susans in the Shenandoah. Swam in hot springs in Idaho and clamored over red rocks in Utah. Camped among the aspen in Colorado. Hiked old growth forests in Oregon, marveled at the coastal redwoods of California.
All those places share one thing. They are public lands that belong to us all. For now. In recent years, more than 50 short-sighted bills have been introduced in state legislatures to transfer, sell, or otherwise take away your birthright—the public lands that are managed for us by the U.S. Forest Service and the Bureau of Land Management. Not to be outdone, Congress has entertained similar proposals. Presidential candidates have campaigned on the issue. As much as we'd all like to think “that can't happen,” the fact is that there are well-heeled special interests dedicated to seeing that it does.
Those who seek this so called “transfer”—county supremacists, sagebrush rebels and their contemporary cicadian progeny—neglect an important fact. At no time did the Western federally managed public lands belong to the states. They were either ceded to the Union by Eastern states or acquired through treaty, conquest or purchase by the federal government acting on behalf of the citizens of the United States.
Public lands are the best idea America ever had. For those of us who want to fish and hunt, camp and hike without having to beg or buy permission, they are a godsend. The ham-handed dialogue about transferring or divesting public lands that drives the debate today is unhelpful and unproductive. To suggest that our land legacy—a legacy that a kid from New Jersey shares with a rancher in New Mexico—should be transferred or sold for a pittance is extreme and offensive.
For the next 30 days, tune into TU for a steady diet of stores about why public lands matter. Share the stories, video, and photos with your friends. Raise your voice and let your member of Congress and elected leaders in your state know that the public lands are a birthright that belongs to all of us, and we are not willing sellers.
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Some of the most vulnerable countries in the world just sent a clear message that they want leaders to agree to a strong agreement to phase down hydrofluorocarbons (HFCs) this year under the Montreal Protocol. World leaders have a chance to minimize the damages to those countries if they act decisively next month and agree to significant cuts in the use of these super-potent, heat-trapping chemicals.
At the recent meeting of the Pacific Islands Forum, many island nations put their support behind an ambitious deal at the Montreal Protocol negotiations in October. Capable of avoiding warming of up to 0.5°C by 2100, an agreement on HFCs is critical to upholding the Paris Agreement's ambition of limiting global temperature rise to 1.5°C. As the Pacific Islands Forum communique states:
"Leaders stressed that the amendment should include an early freeze date for HFC production and consumption followed by a rapid phase down of HFCs."
Proposals vary widely for the timing of the HFC phase down schedule. Countries are already converging on a phasedown schedule for developed countries, likely to start in 2019. The timing for the phasedown schedule of developing countries is under serious debate, with widely diverging proposals. The Africa Group, Pacific Island countries, leading Latin American and Caribbean countries, the U.S., European Union, Japan, and other developed countries have the most ambitious proposal, with a freeze on HFC use for developing countries to begin in 2021. Other Latin American and Asian countries have indicated their willingness to freeze in 2025, while China and Pakistan are proposing 2025--2026 as their preferred freeze years. The Chinese recently committed to help achieve an "an early freeze date and ambitious phase down schedule," so there might be flexibility in this initial proposal. Saudi Arabia and other Gulf States suggested 2028, and Iran 2029. India, seeking to continue HFC growth for another 15 years, is proposing a freeze in 2031. The 10-year gap between leading and lagging proposals makes a major environmental difference: waiting for the developing countries to freeze in 2031, would allow at least 15 billion extra CO2-eq tons of HFC use - close to half the entire world's CO2output for an entire year.
A strong HFC phase down schedule matters a lot to the most vulnerable. The Pacific Island leaders welcomed the Dubai Pathway for reaching an amendment on HFCs this year, and pushed for an agreement to be reached at the Kigali meeting this October. Without a strong global commitment to reaching a deal in Kigali, the very existences of these island nations is threatened. As the Minister for Foreign Affairs of the Republic of the Marshall Islands John Silk emphasized:
"Today's communique is a clarion call to action that even with the Paris Agreement, there remains a lot of work to do to guarantee there will still be 16 seats at the Pacific Islands Forum in a hundred years from now."
Members of the Pacific Islands Forum account for less than 2 percent of global emissions, with many island stands accounting for less than 0.01 percent of global emissions. But these states have already suffered devastating storms and cyclones of increasing severity and flooding. When leaders debate the exact freeze date, we should keep in mind the consequences for these most vulnerable nations that had such a small role in creating the problems we face.
Over 100 countries currently support an early freeze on the use and production of HFCs. Next month, when parties gather in Kigali, the key task will be for other world leaders to seize the moment and agree to a strong freeze date and phasedown schedule. The most vulnerable need an agreement, but as the Pacific Island leaders pointed out, they don't just need any agreement - they need an ambitious one.
The stage has been set - now can we get a deal that the climate, and the Pacific Islands, deserve?
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(The Forty-Seventh Pacific Islands Forum was attended by Heads of State and Government and Deputies from Australia, the Cook Islands, Federated States of Micronesia, the Republic of Nauru, New Zealand, Papua New Guinea, Republic of the Marshall Islands, Samoa, Tonga, Tuvalu, Vanuatu, the Solomon Islands, Republic of Fiji, Niue, the Republic of Palau, and Kiribati. Additional attendees included French Polynesia, New Caledonia and Tokelau as Associate Members, the Commonwealth of the Northern Marianas Islands, Timor-Leste, and Wallis and Futuna.)
This post was co-written with Han Chen and Alex Hillbrand.
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-- This feed and its contents are the property of The Huffington Post, and use is subject to our terms. It may be used for personal consumption, but may not be distributed on a website.
sltaylor001 posted a photo:
Close up of handlebars showing a ladybird bicycle bell on a bicycle locked up at Highbury Fields, North London
Robert Bezeau is the creator of Plastic Bottle Village—a community in Panama that reuses plastic bottles to build houses, roads, and more. Over the years, he's accrued more than a million bottles, and construction is well underway. This documentary by MEL films goes inside the Plastic Bottle Village and introduces us to Bezeau and the young couple about to move into one of his plastic bottle homes. To see more films from MEL, visit their website and Vimeo page.
Report comparing past mass extinction events warns that hunting and killing of ocean's largest species will disrupt ecosystems for millions of years
Humanity is driving an unprecedented extinction of sealife unlike any in the fossil record, hunting and killing larger species in a way that will disrupt ocean ecosystems for millions of years, scientists have found.
A new analysis of the five mass extinction events millions of years ago discovered there was either no pattern to which marine species were lost, or smaller species were the ones that disappeared.
Related: We'd never kill an albatross or gorilla: but we let others do it on our behalf | George Monbiot
Continue reading...Read more: Politics, Hillary Clinton, Bernie Sanders, Democracy, Donald Trump, Election Day, Lyndon Johnson, Fdr, Franklin Roosevelt, Epa, Environment, Climate Change, Money in Politics, Voting Rights, Campaign Finance Reform, Public Financing, Constitutional Amendment, Bill Moyers, Mlk, Labor, Selma, Politics News
Christine's Observations posted a photo:
31.8.16. Very low tide means I can walk to areas of the Thames which are usually well under water. The sun is still setting and the sky is highlighted in the most amazing tones... these splash onto the surface of the water... I think this picture of London is one of my all time favourites. If you have not yet visited London, what are you waiting for? It is the greatest city on earth :)
ghostedout posted a photo:
A misty and bright, yet moody early morning in Barbican, London
Sometimes, when traveling through Maasai Mara, visitors may see elephants with half of their trunk missing. The poor creatures must kneel to pluck grasses, and they are unable to reach leaves from the canopies of trees at all.
It is no mystery what maims these elephants.
Over smoky fires, well hidden from passersby on the road and the wary eye of law enforcement officers, people burn the rubber from tires and harvest the steel wire within them. Twisting these metal strands together and tying a slipknot in one end, they form deadly nooses with which to catch wild animals. The bushmeat poachers set these snares in between shrubs to trap wildebeests or zebra, high in trees to catch giraffes, and low to the ground to snag warthogs. The result is gruesome. Animals die from thirst or exposure, from deep lacerations caused by the biting wire cinched around their throat or leg or from spears and clubs when poachers return to check their traps. Some animals manage to break free on their own but sustain life-threatening injuries while doing so. The elephants that have lost their trunks are examples.
(Above: The AKTF Anti-Poaching Team removes snares in Maasai Mara National Reserve)
Elephants are not the intended targets of these snares, as zebra, wildebeest, giraffe, eland, warthogs and antelope are, but they get caught all the same. The same is true for lions.
In partnership with National Geographic's Big Cat Initiative, The Anne K. Taylor Fund (AKTF) tackles the main threat to lion populations, human-wildlife conflict, ‘head on' through our work with predator-resistant, fortified bomas. By protecting livestock from wild predators in these stockades, we are able to significantly reduce the number of lions that die from retaliation attacks by herders. In addition to building bomas, though, we also protect lions by combatting threats to their habitat and prey populations from poachers, their snares and their spears.
Our Anti-Poaching Team, in partnership with the Mara Conservancy Rangers and Kenya Wildlife Service/David Sheldrick Wildlife Trust veterinarians, runs regular patrols in and around Maasai Mara to ambush and arrest poachers, remove snares from the bush, and rescue as many wildlife caught in snares as possible.
(Above: AKTF & Mara Conservancy Rangers rescue a wildebeest caught in a poacher's snare)
This past week we removed 582 snares, rescued 40 animals trapped in them, and discovered eight more animals that had succumbed or been slaughtered already. It was a good week for the wildlife we protect. Those snares that our team removed represent more than just nearly 600 wildlife lives saved: because the steel wires are nearly indestructible, poachers use them over and over again, meaning that those snares, had they been left in the bush, could have taken the lives of thousands of animals a year.
(Above: AKTF Anti-Poaching patrollers holding dozens of snares removed from the Reserve; their faces are obscured to protect their identities)
We see the role of our work in Maasai Mara ‘buying time' until local education, society, and values change in ways that eradicate poaching organically. By addressing threats to lion populations from these angles, there is a better chance for a lasting difference to take hold. We are deeply grateful for the generous support of National Geographic, as well as many other private and institutional donors, that make our work possible and keep us optimistic about the future of Maasai Mara's ecosystem and the lions it nurtures.
Read more: Environment, Climate Change, Health, Malawi, World News
The Wildlife Photographer of the Year competition, founded in 1965, is an annual international showcase of the best in nature photography. Wildlife Photographer of the Year is developed and produced by the Natural History Museum, London. This year, the contest attracted nearly 50,000 entries. The owners and sponsors have been kind enough to share the following 11 finalists from this year's competition. Their website has images from previous years and more information about the current competition and exhibition. Captions provided by the photographers and WPY.
alex saberi posted a photo:
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The European Space Agency has revealed the first catalogue of stars mapped during its Gaia mission today.…
Today I'll be traveling throughout the freeway network of Los Angeles, well known for its massive interchanges (and traffic). The Judge Harry Pregerson Interchange is a stack highway interchange located near the Athens and Watts neighborhoods in South LA. This junction is composed of five levels that scale to a staggering height of more than 40 meters (132 feet).
33.9287°N 118.281°W
Instagram: http://bit.ly/2crrtYn
HONG KONG ― The numbers are in: NASA announced Monday that August 2016 was the hottest month ever recorded since global records began in 1880. Several parts of Asia, including Hong Kong and Singapore, have also recently had their hottest months ever recorded.
Standing outside in the middle of the day in Jakarta, Manila or Mumbai is sometimes almost unbearable. Calling it “humid” would be an understatement. In Singapore, the mean annual relative humidity is 84 percent, frequently reaching 100 percent during prolonged rain. A World Bank report released last week estimates that the “welfare losses” as a result of air pollution have dramatically increased over the last 25 years as developing countries urbanized and industrialized.
This is the environment that millions of urban dwellers in the tropics currently live in. It does not need to be like this. Tropical cities can be made livable again. But it will require governments to make very difficult decisions.
If the people living in tropical cities are to survive our hot future, governments need to radically rethink how they manage urbanization.
Tropical Asia's dense and overcrowded cities are already subject to the heat-island effect, which makes them significantly warmer than their rural surroundings. As temperatures threaten to increase by a further two to three degrees, as some scenarios by the Intergovernmental Panel on Climate Change predict, tropical cities are quickly becoming unlivable. And this is not even taking into account overcrowding, poor housing and slums, water and sewerage issues, solid waste disposal and the curses of urban traffic and pollution.
Yet like the proverbial frog in boiling water, city inhabitants appear helpless ― as if resigned to their fate with no other options. If tropical cities, and the people that live in them, are to survive our hot future, governments need to radically rethink how they manage the urbanization trend ― and perhaps even consider moving people away from these unlivable cities.
For those who live in temperate or sub-tropical zones (or in climate-controlled rooms), it can be hard to know what a tropical city life feels like. The humid air sits on you, preventing your body from cooling itself properly, thus affecting productivity. For the poor, without air-conditioning, heat can make entire homes unlivable. Night temperatures can be so high that deep sleep becomes impossible. Many have to work in the heat outdoors or in a poorly ventilated, uncooled office, sometimes a long uncomfortable and pollution-ridden commute away.
The upper and middle classes have an escape from the unbearable heat: air-conditioning. Cooling is not seen as a luxury, but a necessity: as an article in the New York Times notes, “an air-conditioner has become a sign of middle-class status in developing nations, a must-have dowry item.” When air-conditioning first arrived in Asia, it was only available for the wealthy at a time when cities were a quarter the size they are now. But air-conditioning is now wildly popular in Asia, which now makes up half the global market for cooling units.
Rich cities like Singapore have even been able to ensure much broader access to artificial cooling; in Hong Kong, opposition politicians blocked the construction of a new homeless shelter, calling its lack of air-conditioning “inhumane.” For well-off households across Asia, air-conditioning is, to quote Lee Kuan Yew, “the greatest invention of the century.” One is perhaps also reminded of Noel Coward's old song: that only “mad dogs and Englishmen go out in the midday sun.” Yet for hundreds of millions in these cities, escaping the midday sun is not an option ― they must live, work and sleep in uncooled and sweltering surroundings.
Air-conditioning is an unsustainable solution to the problem of hot cities. A/C units release heat as waste, which is then trapped between dense skyscrapers. This pushes cooling units to work harder and use more energy. All these units consume electricity, which is likely produced by fossil fuels. As more and more people in the tropics buy air-conditioning, more carbon is released into the atmosphere. A/C units are also a major contributor to other less known but potent greenhouse gases. Research suggests that the energy demand for air-conditioning will increase by 40 times this century, overtaking the energy used for heating by around 2060.
An air-conditioner has become a sign of middle-class status in developing nations, a must-have dowry item.
New York Times
Tropical cities in general are getting hotter even before we include the effect of climate change. The combination of heat absorbed by building materials and waste heat from transportation and homes means that cities can be up to 3 degrees warmer than rural areas. The temperature difference is greatest at night, as concrete and asphalt radiate the heat absorbed during the day. Waste heat from cities can even be carried to remote areas by air currents, with some scientists finding a temperature increase of 1 degree in some rural areas due to nearby urban development.
The well-off, thanks to air-conditioning, are insulated from a warming climate, and so there is little political will to make cities cooler. The upper and middle classes live and sleep in climate-controlled apartments, work in cooled offices and sit in air-conditioned cars when traffic is gridlocked. Their children enjoy the same and can sometimes cool off in private swimming pools. But for the vast majority of urban dwellers in tropical cities, these luxuries are out of reach.
The problem of these hot and unlivable cities has been worsened by uncontrolled and poorly conceived urbanization. According to the World Bank, 200 million people (equivalent to what would be the world's fifth-largest country) have moved to cities between 2000 and 2010. Urban areas have grown by an area the size of Taiwan. These migrants all need housing and transportation. Many are migrants who live in shanties or poorly constructed buildings and often work in uncooled environments that have become unbearable as temperatures have soared in recent years. They sit sweltering in congestion: in Jakarta, where the number of vehicles on the road increases by about 10 percent each year despite no growth in roads, 12 people reportedly died from heat and carbon-dioxide poisoning in a three-day-long traffic jam.
To make matters worse, urban migration often disproportionately targets one city: the capital. All cities are growing, but major cities like the capital attract the most migrants, which tests their provision of basic needs and social services ― in which regard most have failed. One would think that an urbanization drive that is much more equally shared amongst several cities and towns would lessen population pressures, but that is not what has been seen in the developing world because of poor economic policies and regional planning.
It is too often assumed that urbanization and economic development must go hand in hand. It is true that urbanization does unlock economic potential in a country's population. However, the problem is that many developing countries have not properly controlled and channelled urbanization. The enormous number of man-hours lost in traffic jams and persistent illnesses in crowded and hot cities decreases productivity and quality of life.
Letting people move to the city is “easy” but it is an archaic short-term path to growth with long-term negative consequences, as evident by the all-too-obvious and deteriorating conditions in tropical cites. It is also easy for the government to focus its energy and attention on the capital where big business is concentrated and where the rich tend to live, rather than developing a broad-based program that develops multiple reasonably sized cities and small towns simultaneously.
The well-off, thanks to air-conditioning, are insulated from a warming climate, and so there is little political will to make cities cooler.
If countries in the tropics are serious about mitigating and reducing the effects of climate change, they need to understand urbanization differently and appreciate that their increasingly unlivable cities must be the target of new and daring economic planning and environmental policy. Countries must find a way to channel people to less crowded areas, by providing economic opportunities in the countryside and developing secondary towns in order to broaden the economic base. They may need to do something that few have ever considered: moving people out of these large cities, to make sure that urban environments are actually livable.
All the efforts to make cities in the tropics adapt to climate change need a fresh dose of reality ― to move beyond hypothetical approaches towards reducing carbon demands, green cars and “smart cities” and toward an acceptance that these cities are too large and unmanageable to survive in a new climate that makes them too hot to live in. Only by cooling its drive to urbanize will Southeast Asia cool its sweltering cities.
-- This feed and its contents are the property of The Huffington Post, and use is subject to our terms. It may be used for personal consumption, but may not be distributed on a website.
-- This feed and its contents are the property of The Huffington Post, and use is subject to our terms. It may be used for personal consumption, but may not be distributed on a website.
The Science Museum has announced it will reconsider its exhibition on sex and gender after it faced criticism over a quiz that tested whether a brain was male or female.…
HONG KONG ― The numbers are in: NASA announced Monday that August 2016 was the hottest month ever recorded since global records began in 1880. Several parts of Asia, including Hong Kong and Singapore, have also recently had their hottest months ever recorded.
Standing outside in the middle of the day in Jakarta, Manila or Mumbai is sometimes almost unbearable. Calling it “humid” would be an understatement. In Singapore, the mean annual relative humidity is 84 percent, frequently reaching 100 percent during prolonged rain. A World Bank report released last week estimates that the “welfare losses” as a result of air pollution have dramatically increased over the last 25 years as developing countries urbanized and industrialized.
This is the environment that millions of urban dwellers in the tropics currently live in. It does not need to be like this. Tropical cities can be made livable again. But it will require governments to make very difficult decisions.
If the people living in tropical cities are to survive our hot future, governments need to radically rethink how they manage urbanization.
Tropical Asia's dense and overcrowded cities are already subject to the heat-island effect, which makes them significantly warmer than their rural surroundings. As temperatures threaten to increase by a further two to three degrees, as some scenarios by the Intergovernmental Panel on Climate Change predict, tropical cities are quickly becoming unlivable. And this is not even taking into account overcrowding, poor housing and slums, water and sewerage issues, solid waste disposal and the curses of urban traffic and pollution.
Yet like the proverbial frog in boiling water, city inhabitants appear helpless ― as if resigned to their fate with no other options. If tropical cities, and the people that live in them, are to survive our hot future, governments need to radically rethink how they manage the urbanization trend ― and perhaps even consider moving people away from these unlivable cities.
For those who live in temperate or sub-tropical zones (or in climate-controlled rooms), it can be hard to know what a tropical city life feels like. The humid air sits on you, preventing your body from cooling itself properly, thus affecting productivity. For the poor, without air-conditioning, heat can make entire homes unlivable. Night temperatures can be so high that deep sleep becomes impossible. Many have to work in the heat outdoors or in a poorly ventilated, uncooled office, sometimes a long uncomfortable and pollution-ridden commute away.
The upper and middle classes have an escape from the unbearable heat: air-conditioning. Cooling is not seen as a luxury, but a necessity: as an article in the New York Times notes, “an air-conditioner has become a sign of middle-class status in developing nations, a must-have dowry item.” When air-conditioning first arrived in Asia, it was only available for the wealthy at a time when cities were a quarter the size they are now. But air-conditioning is now wildly popular in Asia, which now makes up half the global market for cooling units.
Rich cities like Singapore have even been able to ensure much broader access to artificial cooling; in Hong Kong, opposition politicians blocked the construction of a new homeless shelter, calling its lack of air-conditioning “inhumane.” For well-off households across Asia, air-conditioning is, to quote Lee Kuan Yew, “the greatest invention of the century.” One is perhaps also reminded of Noel Coward's old song: that only “mad dogs and Englishmen go out in the midday sun.” Yet for hundreds of millions in these cities, escaping the midday sun is not an option ― they must live, work and sleep in uncooled and sweltering surroundings.
Air-conditioning is an unsustainable solution to the problem of hot cities. A/C units release heat as waste, which is then trapped between dense skyscrapers. This pushes cooling units to work harder and use more energy. All these units consume electricity, which is likely produced by fossil fuels. As more and more people in the tropics buy air-conditioning, more carbon is released into the atmosphere. A/C units are also a major contributor to other less known but potent greenhouse gases. Research suggests that the energy demand for air-conditioning will increase by 40 times this century, overtaking the energy used for heating by around 2060.
An air-conditioner has become a sign of middle-class status in developing nations, a must-have dowry item.
New York Times
Tropical cities in general are getting hotter even before we include the effect of climate change. The combination of heat absorbed by building materials and waste heat from transportation and homes means that cities can be up to 3 degrees warmer than rural areas. The temperature difference is greatest at night, as concrete and asphalt radiate the heat absorbed during the day. Waste heat from cities can even be carried to remote areas by air currents, with some scientists finding a temperature increase of 1 degree in some rural areas due to nearby urban development.
The well-off, thanks to air-conditioning, are insulated from a warming climate, and so there is little political will to make cities cooler. The upper and middle classes live and sleep in climate-controlled apartments, work in cooled offices and sit in air-conditioned cars when traffic is gridlocked. Their children enjoy the same and can sometimes cool off in private swimming pools. But for the vast majority of urban dwellers in tropical cities, these luxuries are out of reach.
The problem of these hot and unlivable cities has been worsened by uncontrolled and poorly conceived urbanization. According to the World Bank, 200 million people (equivalent to what would be the world's fifth-largest country) have moved to cities between 2000 and 2010. Urban areas have grown by an area the size of Taiwan. These migrants all need housing and transportation. Many are migrants who live in shanties or poorly constructed buildings and often work in uncooled environments that have become unbearable as temperatures have soared in recent years. They sit sweltering in congestion: in Jakarta, where the number of vehicles on the road increases by about 10 percent each year despite no growth in roads, 12 people reportedly died from heat and carbon-dioxide poisoning in a three-day-long traffic jam.
To make matters worse, urban migration often disproportionately targets one city: the capital. All cities are growing, but major cities like the capital attract the most migrants, which tests their provision of basic needs and social services ― in which regard most have failed. One would think that an urbanization drive that is much more equally shared amongst several cities and towns would lessen population pressures, but that is not what has been seen in the developing world because of poor economic policies and regional planning.
It is too often assumed that urbanization and economic development must go hand in hand. It is true that urbanization does unlock economic potential in a country's population. However, the problem is that many developing countries have not properly controlled and channelled urbanization. The enormous number of man-hours lost in traffic jams and persistent illnesses in crowded and hot cities decreases productivity and quality of life.
Letting people move to the city is “easy” but it is an archaic short-term path to growth with long-term negative consequences, as evident by the all-too-obvious and deteriorating conditions in tropical cites. It is also easy for the government to focus its energy and attention on the capital where big business is concentrated and where the rich tend to live, rather than developing a broad-based program that develops multiple reasonably sized cities and small towns simultaneously.
The well-off, thanks to air-conditioning, are insulated from a warming climate, and so there is little political will to make cities cooler.
If countries in the tropics are serious about mitigating and reducing the effects of climate change, they need to understand urbanization differently and appreciate that their increasingly unlivable cities must be the target of new and daring economic planning and environmental policy. Countries must find a way to channel people to less crowded areas, by providing economic opportunities in the countryside and developing secondary towns in order to broaden the economic base. They may need to do something that few have ever considered: moving people out of these large cities, to make sure that urban environments are actually livable.
All the efforts to make cities in the tropics adapt to climate change need a fresh dose of reality ― to move beyond hypothetical approaches towards reducing carbon demands, green cars and “smart cities” and toward an acceptance that these cities are too large and unmanageable to survive in a new climate that makes them too hot to live in. Only by cooling its drive to urbanize will Southeast Asia cool its sweltering cities.
-- This feed and its contents are the property of The Huffington Post, and use is subject to our terms. It may be used for personal consumption, but may not be distributed on a website.
-- This feed and its contents are the property of The Huffington Post, and use is subject to our terms. It may be used for personal consumption, but may not be distributed on a website.
-- This feed and its contents are the property of The Huffington Post, and use is subject to our terms. It may be used for personal consumption, but may not be distributed on a website.
-- This feed and its contents are the property of The Huffington Post, and use is subject to our terms. It may be used for personal consumption, but may not be distributed on a website.
Cornelius Agrippa Scientist of the Day
a German authority on natural magic, was born Sep. 14, 1486.