The Arctic is undergoing rapid changes due to climate change, with warmer temperatures, increased rainfall, and thawing permafrost. This transformation is affecting not only the Arctic ecosystem but also the rest of the world through the release of greenhouse gases.
Swans migrate to the north to make use of the very short summer in the Arctic tundra, where they will breed after spending the winter at the south in Novgorod, Russia. The last nine years have been the warmest ever recorded in the Arctic Circle, and this year saw a number of new milestones in the region: It was the rainiest summer on record, and plant life bloomed across the tundra at a near-record pace. The Arctic is swiftly transforming and entering what scientists call a “new regime.
” That’s one of the findings of this year’s Arctic Report Card, a document published by the U.S. government’s National Oceanic and Atmospheric Administration, which shows how wildfires and thawing permafrost have turned the region into a net source of carbon emissions for the first time. Changes that happen in the Arctic have a direct influence on those of us far away from it. One of the ways that a rapidly warming Arctic affects the rest of the world is by releasing potent greenhouse gases of its own. As permafrost — Arctic soil that typically remains frozen year-round — begins to thaw, ancient plant matter that was packed into that ground begins to decompose, releasing methane and carbon dioxide
ARCTIC CLIMATE CHANGE PERMAFROST GREENHOUSE GASES ECOSYSTEM
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