New study finds Greenland as a methane sink, absorbing more methane than it releases, possibly lessening climate change impact.

A new study from the University of Copenhagen reveals that Greenland absorbs more methane than it emits, with dry landscapes in the ice-free part of Greenland consuming an average of 65,000 tons of methane annually from the atmosphere. This absorption is made possible by a unique group of microorganisms that live in the upper layers of arctic soil, which convert atmospheric methane into carbon dioxide, a less potent greenhouse gas. Although Greenland's methane absorption is not large enough to impact the total global amount of atmospheric methane or prove decisive for Arctic methane budgets, the study's findings are encouraging as methane is particularly harmful to the environment.

January 31, 2024
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