Tremors before volcanic eruptions explained, plus more in this week’s news

By Science News, 16:34 PM February 25, 2011

Thawing world
Rising temperatures will release significant amounts of carbon into the atmosphere from thawing permafrost, according to one of the first studies to quantify how much that carbon will contribute to global warming. A combination of global climate simulations suggests that frozen Arctic lands will go from being a net absorber to a net emitter of carbon sometime next decade, researchers from Boulder, Colo., report online February 15 in Tellus. They project that by 2200 Arctic perma...

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