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Tag: permafrost
Alaska Highway permafrost vulnerable to climate change
2015-06-11 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed
CBC: Researchers at Yukon College and the territory's highways department are ramping up efforts to preserve permafrost under roadways and prevent frost heaves and other damage. The problem is expected to worsen with climate change and warmer temperatures. Brian Horton, the research coordinator for the college's Northern Climate ExChange at the Yukon Research Centre, says much of the work is being done on the section of the North Alaska Highway between Burwash Landing, Yukon, and Beaver Creek, Yukon....
Tags: change
alaska
highway
climate
Scientists raise permafrost alarm at UN climate talks
2015-06-09 17:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Agence France-Presse: Scientists issued a dire warning Tuesday to UN climate negotiators in Bonn of a vicious global warming cycle that will be unlocked with the thawing of carbon-bearing permafrost. There may be 1,500 billion tonnes of carbon locked away in permafrost -- perennially frozen ground covering about a quarter of exposed land in the Northern Hemisphere -- said Susan Natali, a researcher with the Woods Hole Research Center in Massachusetts. The carbon will be released incrementally as global temperatures...
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climate
Permafrost holds key to release of trapped carbon
2015-04-15 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Daily Climate: Three sets of scientists in the same week have helped narrow the uncertainties about how the natural world will respond to extra carbon dioxide in the atmosphere caused by the burning of fossil fuels. Carbon locked in the frozen earth will escape gradually as the Arctic permafrost melts but the scientists say the process could accelerate. As greenhouse gas levels soar, and soils warm, and plant roots tap down into the carbon stored there by centuries of ancient growth, they will release potent...
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release
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carbon
Researchers say permafrost carbon release will be gradual
2015-04-10 23:45:00| Climate Ark Climate Change & Global Warming Newsfeed
Associated Press: Frozen Arctic and sub-Arctic soil that thaws from global warming will add substantial amounts of carbon to the atmosphere in the form of greenhouse gases, accelerating climate change the rest of the century, but it won't come in a sudden burst, researchers say in a new paper. A review by government and academic experts concludes that harmful carbon dioxide and methane generated by microbes digesting thawed plant and animal material will instead enter the atmosphere gradually. But it's a carbon...
Tags: release
researchers
carbon
gradual
Permafrost carbon release to have similar impact deforestation
2015-04-10 16:49:00| Climate Ark Climate Change & Global Warming Newsfeed
Blue and Green: As permafrost soils thaw the greenhouse gases stored are likely to be released gradually and over a prolonged period of time, having a similar affect to topical deforestation, according to research from the US Geological Survey. Permafrost soils contain twice as much carbon as there is currently in the atmosphere. As climate change has an impact and permafrost thaws the release of carbon dioxide and methane into the atmosphere increases. Temperatures in high-latitude regions of the Earth, where...
Tags: similar
release
impact
carbon
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