The climate-driven spread of beaver ponds in Alaska’s Arctic accelerates the effects of a warming environment by causing pond-adjacent permafrost to thaw and by increasing the amount of liquid water present during winter. Those are the key findings of the first comprehensive, on-the-ground assessment of the northward migration of beavers. The research was led by […]
For millennia, Indigenous people living in Alaska and Canada’s Yukon territory have relied on Chinook salmon. The large, fatty fish provide essential nutrients for Arctic living and have influenced traditions and languages across generations. But over the past three decades, many communities have been unable to fish Chinook amid a sharp salmon population decline. The […]
Analysis of bowhead whale poop shows that more toxins from typically warm-water toxic algae species are entering Arctic food webs as northern oceans warm and lose sea ice. The findings are based on nearly 20 years of feces samples collected from bowhead whales harvested for subsistence purposes by Alaska Native people living on the Beaufort […]
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 […]