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Shrinking Arctic Sea Ice Means Scorching US Summers
2013-12-08 21:54:00| Climate Ark Climate Change & Global Warming Newsfeed
LiveScience: Thirty years of shrinking Arctic sea ice has boosted extreme summer weather, including heat waves and drought, in the United States and elsewhere, according to a study published today (Dec. 8) in the journal Nature Climate Change. The new study -- based on satellite tracking of sea ice, snow cover and weather trends since 1979 -- links the Arctic's warming climate to shifting weather patterns in the Northern Hemisphere's midlatitudes. "The results of our new study provide further support and...
Worrisome Arctic ocean methane leaks
2013-12-08 15:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Living on Earth: New research based in the East Siberian continental shelf of the Arctic Ocean finds the powerful greenhouse gas methane is escaping from the seabed into the atmosphere twice as fast as scientists previously thought, threatening runaway global warming. University of Alaska professor Natalia Shakhova talks with host Steve Curwood about the research. Transcript CURWOOD: From the Jennifer and Ted Stanley Studios in Boston, this is Living on Earth. I'm Steve Curwood. We begin this week with some...
Tags: ocean
arctic
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Arctic thaw tied to European, U.S. heatwaves and downpours - study
2013-12-08 11:12:00| Climate Ark Climate Change & Global Warming Newsfeed
Reuters: A thaw of Arctic ice and snow is linked to worsening summer heatwaves and downpours thousands of miles south in Europe, the United States and other areas, underlying the scale of the threat posed by global warming, scientists said on Sunday. Their report, which was dismissed as inconclusive by some other experts, warned of increasingly extreme weather across "much of North America and Eurasia where billions of people will be affected". The study is part of a drive to work out how climate change...
Tags: study
european
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arctic
Will Arctic meltdown produce more greenhouse gases or less?
2013-12-07 15:00:00| Climate Ark Climate Change & Global Warming Newsfeed
ClimateWire: In addition to being a warming hot spot, the Arctic plays a pivotal role in the movement of carbon between atmosphere, land and sea. But the degree to which Arctic regions are a carbon sink, versus a source of greenhouse gas, is still a matter of debate. Permafrost holds vast amounts of carbon long stored in cold conditions, for example, but scientists are trying to pinpoint the pace at which the carbon will be released into the atmosphere because of thawing of frozen soil. Similarly, there...
Warm Arctic Waters Emit Carbon, Though Region Carbon Sink Overall
2013-12-04 20:03:00| Climate Ark Climate Change & Global Warming Newsfeed
Nature World: The Arctic Ocean has has long been known as a carbon sink, but a new study suggests that while the frigid waters do store large quantities of carbon, parts of the ocean also emit atmospheric carbon dioxide. Researchers from MIT constructed a model to simulate the effect of sea ice loss in the Arctic, finding that as the region loses its ice, it is becoming more of a carbon sink, taking on about one additional megaton of carbon each year between 1996 and 2007. But while the Arctic is taking on...
Tags: region
warm
carbon
waters
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