arctic warming – आवारा मुसाफिर

Future emissions from ‘country of permafrost’ significant

October 19, 2022530 Views

Greenhouse gases emitting from Arctic must be factored into global climate targets By the end of this century, permafrost in the rapidly warming Arctic will likely emit as much carbon dioxide and methane into the atmosphere as a large industrial nation, and potentially more than the U.S. has emitted since the start of the industrial revolution. But that’s only one possible future for the vast stores of carbon locked in the formerly perennially frozen but now-thawing ground in the Arctic. Using more than a decade of synthesis science and region-based models, a new study led by Northern Arizona University and the international Permafrost Carbon Network and published in Annual Review of Environment and Resources forecasts cumulative emissions from this “country of permafrost” through 2...

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Polar bears scavenge on garbage to cope with climate change

AWARA MUSAFIR BUREAU

July 20, 2022279 Views

Hungry polar bears are turning to garbage dumps to fill their stomachs as their icy habitat disappears. On Wednesday, a team of Canadian and U.S. scientists warned that trash poses an emerging threat to already-vulnerable polar bear populations as the animals become more reliant on landfills near northern communities. This is leading to deadly conflicts with people, the report published in the journal Oryx said. Polar bears scavenge for food at a dump in Churchill, Canada, in this handout image dated circa 2003. In 2005, the community permanently closed its dump and now stores garbage in a secure facility. Dan Guravich/Polar Bears International/Handout via REUTERS "Bears and garbage are a bad association," said co-author Andrew Derocher, a biologist at the University of Alberta. ...