Columbia University

When the world ended in ice

(Phys.org) -- A mile or so of glacial ice covering much of North America and plowing down from the north once terminated in the New York metropolitan area, at a front stretching roughly from exit ...

Jul 03, 2012 5 / 5 (3) 4

New virus may pose risk to wild salmon

Farmed fish are an increasingly important food source, with a global harvest now at 110 million tons and growing at more than 8 percent a year. But epidemics of infectious disease threaten this vital industry, including one ...

Jul 09, 2010 5 / 5 (5) 10 | with audio podcast

Fixing climate: Beyond carbon dioxide

Climate scientists at a meeting of the American Association for the Advancement of Science this week were elated to hear that the United States and five other countries had agreed to work toward cutting ...

Feb 24, 2012 4.1 / 5 (8) 0

Climate change and the future of Mono Lake

Guleed Ali pauses to study his notebook, standing on a steep slope covered in gray volcanic ash and desert brush, high above the present-day shore of Mono Lake in eastern California. He looks across the slope ...

Dec 13, 2013 1 / 5 (1) 1