Warming global climate is changing the vegetation structure of forests in the far north. It’s a trend that will continue at least through the end of this century, according to NASA researchers. The change in forest structure could absorb more of the greenhouse gas carbon dioxide (CO2) from the atmosphere, or increase permafrost thawing, resulting […]
“This is yet one more sign, predicted by scientists, of the consequences of inadequately reducing fossil fuel pollution,” said one scientist. Permafrost in the Arctic has stored carbon dioxide for millennia, but the annual Arctic Report Card released by the National Oceanic and Atmospheric Administration reveals a concerning shift linked to planetary heating and a rising number […]
PROVIDENCE, R.I. [Brown University] — When it comes to greenhouse gases, methane is one the biggest contributors. Not only is it massively abundant — it’s about 25 times more potent than carbon dioxide at trapping heat in the atmosphere. That makes tracking methane emissions critically important, and nowhere more so than in the Arctic, which is […]
Caribou have been using the same Arctic calving grounds for more than 3,000 years, according to a new study by the University of Cincinnati. Female caribou shed their antlers within days of giving birth, leaving behind a record of their annual travels across Alaska and Canada’s Yukon that persists on the cold tundra for hundreds […]