Researchers say carbon release from thawing permafrost likely will be gradual, not sudden

April 10, 2015 9:44 PM

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ANCHORAGE, Alaska (AP) — 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 source that shouldn't be ignored, said Dave McGuire, a senior researcher at th...

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