Posts Tagged Permafrost

Redrawing the Map: How the World’s Climate Zones Are Shifting…

Rising global temperatures are altering climatic zones around the planet, with consequences for food and water security, local economies, and public health. Here’s a stark look at some of the distinct features that are already on the move… Read the article here at Yale Environment 360: https://e360.yale.edu/features/redrawing-the-map-how-the-worlds-climate-zones-are-shifting Advertisements

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‘Abrupt thaw’ of permafrost beneath lakes could significantly affect climate change models…

Summary:  Methane released by thawing permafrost from some Arctic lakes could significantly accelerate climate change, according to a new study. Unlike shallow, gradual thawing of terrestrial permafrost, the abrupt thaw beneath thermokarst lakes is irreversible this century. Even climate models that project only moderate warming this century will have to factor in their emissions, according […]

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Will Melting Permafrost Release Global ‘Methane Bomb’?…

Intro:  Locked into the chilly soil of the Northern Hemisphere’s high latitudes are vast stockpiles of carbon compounds…  Read the article here at LiveScience: https://www.livescience.com/59860-melting-permafrost-doomsday-methane-bomb.html

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Climate Change News: Huge permafrost thaw can be limited by ambitious climate targets… 

A climate change news update from enn.com: http://www.enn.com/climate/article/51012

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When Permafrost Melts, What Happens to All That Stored Carbon?… 

The Arctic’s frozen ground contains large stores of organic carbon that have been locked in the permafrost for thousands of years. As global temperatures rise, that permafrost is starting to melt, raising concerns about the impact on the climate as organic carbon becomes exposed…   Read more here at enn.com : When Permafrost Melts, What Happens […]

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Degrading underground ice wedges are reshaping Arctic landscape…

Rapid melting of ice and Arctic permafrost is altering tundra regions in Alaska, Canada and Russia, according to a new study. Ice-wedge degradation has been observed before in individual locations, but this is the first study to determine that rapid melting has become widespread throughout the Arctic… Source, sciencedaily.com: Degrading underground ice wedges are reshaping […]

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Abrupt rise in greenhouse gases at end of last ice age may be because of permafrost…

News from ENN.com… the full article can be read here: Abrupt rise in greenhouse gases… One of the most abrupt rises in the carbon dioxide concentration in the atmosphere at the end of the last ice age took place about 14,600 years ago. Ice core data show that the CO2 concentration at that time increased […]

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Climate Change: Political Science vs. Soil Science…

from the website: “Good Nature Travel” – goodnature.nathab.com… “…studies from the University of Wisconsin-Madison that show that the seasonal thaw, or “active layer” of polar soils, is increasing and permafrost is decreasing. Permafrost is typically defined as soils that stay at or below freezing for two or more years at a time…” See the full […]

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