Findings raise new questions about climate dynamics During the last ice age, massive icebergs periodically broke off from an ice sheet covering a large swath of North America and discharged rapidly melting ice into the North Atlantic Ocean around Greenland, triggering abrupt climate change impacts across the globe. These sudden episodes, called Heinrich events, occurred […]
Algae that commonly grow on snow in the Pacific Northwest have been ignored in melt models, but their presence significantly increases snowmelt compared with clean, white snow, according to a study conducted on Mount Baker in the North Cascades, Washington. Scientist Alia Khan at Western Washington University and the National Snow and Ice Data Center at […]
Some modern Alaska Natives still live almost exactly where their ancestors did 3,000 years ago The first people to live in the Americas migrated from Siberia across the Bering Land Bridge more than 20,000 years ago. Some made their way as far south as Tierra del Fuego, at the tip of South America. Others settled […]
Team sequences and mines genome of the pathogen Babesia duncani ‘Tis the season for hiking now that spring has arrived and temperatures are on the upswing. But with hikes come insect bites and on the increase in North America is babesiosis, a malaria-like disease spread especially between May and October by a tick. Recent research […]