Newly formed lakes in Alaska are releasing high amounts of methane due to permafrost thaw, according to a study by the Arctic Boreal Vulnerability Experiment (ABoVE). The release of "geologic" methane is happening at Esieh Lake, another of the study sites. In all thermokarst lakes, the gases bubble up to the lake surface and release into the atmosphere. As the lake freezes in the winter, the bubbles can prevent ice from forming and create pockets of open water that continue emitting methane throughout the season. The study warns that areas that are newly thawed are a concern for the future when thinking about permafrost carbon feedback.
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Fairbanks, Alaska, United States |