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Showing posts from March, 2017

What Regions Are Most at Risk for Ice Loss in East Antarctica?

https://eos.org/research-spotlights/what-regions-are-most-at-risk-for-ice-loss-in-east-antarctica Source:   By Sarah Witman, Earth & Space News, AGU For Investigation:   10.3 Excerpt: ...Antarctica is... covered almost entirely by a vast sheet of ice, stretching from the towering plateau of East Antarctica to the chain of mountainous islands (interconnected by ice) that form West Antarctica. This ice sheet comprises about 90% of the ice on Earth.... If Earth’s oceans and atmosphere continue to warm at the rates projected by most climate models, over the next few hundred years, the Antarctic ice sheets could melt enough to cause a sea level rise of several meters. Most likely, the severity of ice loss will vary geographically because of physical differences across the continent, such as ice thickness and bedrock topography. Previous simulations have shown that most of the ice melt will occur in the West Antarctic Ice Sheet, yet less is known about how the East Antarctic Ice She

Himalayan Climate Change Affects Regional, Global Environments

https://eos.org/meeting-reports/himalayan-climate-change-affects-regional-global-environments Source:   By Meri Joswiak, Daniel Joswiak, and Tandong Yao, Earth & Space Science News, EoS (AGU) For Investigation:   10.3 Excerpt: The high-elevation region that includes the Tibetan Plateau and its surrounding mountain ranges has been dubbed the “Third Pole.” This region encompasses approximately 5 million square kilometers of unforgiving terrain, with an average elevation of more than 4000 meters above sea level, and it straddles tense geopolitical borders. The Third Pole includes an estimated 100,000 square kilometers of glaciers. Cumulatively, this region holds the planet’s largest concentrated stock of ice outside the Arctic and Antarctic. The annual variability of snow extent affects global atmospheric circulation patterns, monsoon variability, and, more important, drinking and irrigation water that sustains roughly 1.5 billion people in downstream countries, including India,

Arabian Sea algae bloom linked to climate change

https://www.washingtonpost.com/world/middle_east/growing-algae-bloom-in-arabian-sea-tied-to-climate-change/2017/03/15/01877bbc-0957-11e7-bd19-fd3afa0f7e2a_story.html Source:   By Sam McNeil | AP For Investigation:   10.3 Excerpt: BANDAR AL-ROWDAH, Oman — The Gulf of Oman turns green twice a year, when an algae bloom the size of Mexico spreads across the Arabian Sea all the way to India. Scientists who study the algae say the microscopic organisms are thriving in new conditions brought about by climate change, and displacing the zooplankton that underpin the local food chain, threatening the entire marine ecosystem. ...Across the planet, blooms have wrecked local ecosystems. Algae can paralyze fish, clog their gills, and absorb enough oxygen to suffocate them. Whales, turtles, dolphins and manatees have died, poisoned by algal toxins, in the Atlantic and Pacific. These toxins have infiltrated whole marine food chains and have, in rare cases, killed people, according to the U.N. sci

Large Sections of Australia’s Great Reef Are Now Dead, Scientists Find

https://www.nytimes.com/2017/03/15/science/great-barrier-reef-coral-climate-change-dieoff.html Source:   By Damien Cave and Justin Gillis, The New York Times For Investigation:   10.3 Excerpt: SYDNEY, Australia — The Great Barrier Reef in Australia has long been one of the world’s most magnificent natural wonders, so enormous it can be seen from space, so beautiful it can move visitors to tears. But the reef, and the profusion of sea creatures living near it, are in profound trouble. Huge sections of the Great Barrier Reef, stretching across hundreds of miles of its most pristine northern sector, were recently found to be dead, killed last year by overheated seawater. More southerly sections around the middle of the reef that barely escaped then are bleaching now, a potential precursor to another die-off that could rob some of the reef’s most visited areas of color and life. “We didn’t expect to see this level of destruction to the Great Barrier Reef for another 30 years,” said Te

Glacial Outburst Flood near Mount Everest Caught on Video

https://eos.org/articles/glacial-outburst-flood-near-mount-everest-caught-on-video Source:   By Katherine Kornei, Earth & Space Science News, EoS (AGU) For Investigation:   10.3 Excerpt: The black water, heavy with debris, came tumbling apparently out of nowhere, gushing over the rocky terrain and pushing boulders around like toys. This torrent is known as a glacial outburst flood, and it forms when water stored deep within a glacier is released without warning. A team of scientists witnessed this rare event firsthand as one spilled down the Lhotse Glacier near Mount Everest on 12 June 2016. Their view, captured on video, affords researchers and the public an up-close look at the mechanics of a glacial outburst flood.  ...In 2016, a team of American researchers was working in Nepal near Imja Lake, one of the region’s largest glacial lakes. They were collaborating with local communities to improve awareness of glacial lake outburst floods, a perennial danger for those downstrea

New Materials Could Turn Water into the Fuel of the Future

http://newscenter.lbl.gov/2017/03/06/new-materials-could-turn-water-into-the-fuel-of-the-future/ Source:   By Dan Krotz, Berkeley Lab News Center For Investigation:   10.3 Excerpt: Scientists at the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) and the California Institute of Technology (Caltech) have—in just two years—nearly doubled the number of materials known to have potential for use in solar fuels. They did so by developing a process that promises to speed the discovery of commercially viable generation of solar fuels that could replace coal, oil, and other fossil fuels....

Sydney’s Swelter Has a Climate Change Link, Scientists Say

https://www.nytimes.com/2017/03/02/science/australia-heat-climate-change.html Source:   By Henry Fountain, The New York Times For Investigation:   10.3 Excerpt: Southeastern Australia has suffered through a series of brutal heat waves over the past two months, with temperatures reaching a scorching 113 degrees Fahrenheit in some parts of the state of New South Wales. “It was nothing short of awful,” said Sarah Perkins-Kirkpatrick, of the Climate Change Research Center at the University of New South Wales, in Sydney. “In Australia, we’re used to a little bit of heat. But this was at another level.” So Dr. Perkins-Kirkpatrick, who studies climate extremes, did what comes naturally: She looked to see whether there was a link between the heat and human-driven climate change. Her analysis, conducted with a loose-knit group of researchers called World Weather Attribution, was made public on Thursday. Their conclusion was that climate change made maximum temperatures like those seen in J