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Tag: permafrost
Climate simulations show effects of releasing permafrost carbon
2016-08-30 07:46:00| Climate Ark Climate Change & Global Warming Newsfeed
Ars Technica: During the last deglaciation, between roughly 21,000 and 10,000 years ago, there was a rise in atmospheric carbon. This surge brought CO2 levels up to where they were in preindustrial times and contributed to the warming that ended the glacial period. But there's a significant item missing from this picture: we don't know where the carbon came from. Researchers had suggested that changes in the distribution of ice, driven by alterations in Earth's orbit and tilt, altered the oceans capacity to...
Tags: show
effects
carbon
climate
Scientists warn anthrax just one threat as Russian permafrost melts
2016-08-11 09:13:00| Climate Ark Climate Change & Global Warming Newsfeed
Agence France-Presse: A recent anthrax outbreak in the far north of Russia left a child dead, 23 people infected and the government scrambling to deploy hundreds of rescue workers and soldiers to stop any further spread. The source, scientists say, seems likely to have been the long-buried corpses of reindeers on Yamal peninsula uncovered as Russia's permafrost melts -- and then been passed on to grazing herds. The fear now is that this is not a freak incident and that other diseases -- some dating back to the Ice...
Tags: russian
threat
scientists
warn
Changing Winter Climate Causing Permafrost Below Shallow Arctic Lakes to Thaw
2016-06-20 10:04:00| Climate Ark Climate Change & Global Warming Newsfeed
Nature World: A new study revealed that warmer winters and increasing snowfalls due to climate change is causing the permafrost below the shallow arctic lake. According to the study published in Geophysical Research Letters, changing winter climates over the last 30 years have limited the growth of seasonal sea ice, leading to warming of lakebed temperature of Arctic lakes less than 1 meter deep by 2.4 degree Celsius. This makes the annual lakebed temperature to be above the freezing point. This rate of...
Tags: winter
changing
causing
climate
Gas from thawing permafrost could add further to global warming, study says
2016-02-26 04:35:00| Climate Ark Climate Change & Global Warming Newsfeed
Reuters: Arctic permafrost that is thawing due to global warming is releasing greenhouse gases, further compounding the problem of climate change, according to a study released on Thursday. As the permafrost thaws, changes in the way its soil microbes function and the soil carbon decomposes add to the emissions of carbon dioxide and methane into the atmosphere, according to the study by U.S. and Chinese scientists. Carbon dioxide and methane are the main greenhouse gases that trap heat and contribute to...
Warming Could Mean Major Thaw For Alaska Permafrost
2016-01-14 20:01:00| Climate Ark Climate Change & Global Warming Newsfeed
Climate Central: If youd asked permafrost researcher Vladimir Romanovsky five years ago if he thought the permafrost of the North Slope of Alaska was in danger of substantial thaw this century because of global warming, he would have said no. The permanently frozen soils of the northern reaches of the state are much colder, and so more stable than the warmer, more vulnerable permafrost of interior Alaska, he would have said. I cannot say it anymore he told journalists last month at the annual meeting of the American...
Tags: major
alaska
warming
thaw