US EditionParts of tundra releasing more carbon than they absorb: study
- A new study indicates that Arctic tundra is releasing more planet-warming gases than it absorbs, reversing a long-standing trend.
- Thawing permafrost is identified as a main driver of this shift, releasing CO2 and methane into the atmosphere.
- The Arctic-boreal zone is no longer absorbing a statistically significant amount of carbon emissions when factoring in wildfire emissions.
- About 20 percent of areas releasing more carbon than they absorb are located in Canada.
65 Articles
65 Articles
According to a study published on Tuesday, January 21, the lands of the polar regions, which have been natural reservoirs of carbon dioxide for thousands of years, now emit more CO₂ and methane than they trap. Like 30% of the Arctic zone, the fault is due to the thawing of permafrost, but also to the increase in fires.
A third of the Arctic's landmass is now a source of carbon: study
For thousands of years, the land areas of the Arctic have served as a "carbon sink," storing potential carbon emissions in the permafrost. But according to a study published in the journal Nature Climate Change Tuesday, more than 34% of the Arctic is now a source of carbon to the atmosphere, as perm...
Melting Arctic permafrost releases vast stores of carbon into the atmosphere
A new study reveals that over a third of the Arctic's permafrost, once a carbon storage powerhouse, is now emitting carbon dioxide as global temperatures rise.Patrick Greenfield reports for The Guardian.In short:Arctic ecosystems that stored carbon for millennia are now emitting CO2, with 30% of the...
The Arctic region has been sequestering huge amounts of carbon dioxide in the soil since the Ice Age, but warming has begun to release it into the atmosphere.
Parts of tundra releasing more carbon than they absorb: Study
Houses, roads, airstrips, communication towers and other infrastructure built on permafrost are at risk of collapse or erosion-related damage, a separate study published last week in Communications Earth and Environment says.
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