BOULDER, Colo., October 6, 2015—At the end of its melt season, the Arctic’s ice cover fell to the fourth lowest extent in the satellite record, both in the daily and monthly average, according to scientists at the National Snow and Ice Data Center (NSIDC). Sea ice extent hit 4.41 million square kilometers (1.70 million square miles) […]
While talking with two friends just inside a university entrance-way, I saw a creature scampering in our direction just outside the glass doors. My first though was of a misdirected red squirrel running on the concrete. But this guy was longer, and bounded like a Slinky. A weasel! We went outside and staked out the […]
Dave Klein was 47 when he kicked into a scree slope in Atigun Canyon and saw something unusual in the rocks below. He reached down and picked up a three-inch wedge of bone or antler that had been worked into points on each end. One half of it had notched barbs. Klein was 88 when […]
BOULDER, Colo., September 21, 2015–Greenhouse gas emissions from thawing Arctic permafrost could result in an additional $43 trillion in economic impacts by the end of the twenty-second century, according to a new study by researchers from the University of Cambridge and the National Snow and Ice Data Center. These extra impacts justify the need for […]