20 Jul '17, 3pm

Thawing Permafrost Poses Even Greater Climate Threat Than Previously Thought, Study Finds

Mackenzie River in Canada's Northwest Territories. NASA Earth Observatory Thawing Permafrost Poses Even Greater Climate Threat Than Previously Thought, Study Finds Thawing tundra may be allowing long-buried pockets of methane to be released into the atmosphere, new research suggests. A study surveying the Mackenzie Delta in Canada, published Wednesday in the journal Scientific Reports, suggested that these methane "seeps" on the tundra may be more problematic than previously thought. The study finds that 17 percent of methane emissions in the area came from these seeps, despite emissions hotspots only covering one percent of the tundra's surface area. The authors wrote that warming will "increase emissions of geologic methane that is currently still trapped under thick, continuous permafrost , as new emission pathways open due to thawing permafrost." "We were a bit surpris...

Full article: https://www.ecowatch.com/permafrost-methane-2462485783.html

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