This summer, with sea ice across the Arctic Ocean shrinking to below-average levels, a NASA airborne survey of polar ice just completed its first flights. Its target: aquamarine pools of melt water on the ice surface that may be accelerating the overall sea ice retreat. NASA’s Operation IceBridge completed the first research flight of its […]
COS JACKET — On a canoe trip down the lower Tanana River, we’ve scrambled up a sandy bank to explore a place that is less populated now than it was a century ago. No one, in fact, lives at Cos Jacket anymore. There is a cabin-size cache with a tin roof. A few sagging log […]
Shorebirds breeding in Alaska are being exposed to mercury at levels that could put their populations at risk, according to new research from The Condor: Ornithological Applications. Thanks to atmospheric circulation and other factors, the mercury that we deposit into the environment tends to accumulate in the Arctic. Mercury exposure can reduce birds’ reproductive success […]
LOWER TANANA RIVER — On a day like this 121 years ago, a hungry U.S. Army explorer passed here at the mouth of Fish Creek, where clear water collides with the cloudy Tanana. Henry Allen did not stop to fish. He had food, and further exploration, on his mind as he and his party paddled […]