Aaron Putnam sits atop a boulder high in the Sierras of central California, banging away with hammer and chisel to chip out a sample of ice age history. Each hunk of rock is a piece of a vast puzzle: How did our climate system behave the last time it warmed up like it’s doing today?
February 14, 2017
October 05, 2016
As the American Southwest grows hotter, the risk of severe, long-lasting megadroughts rises, passing 90 percent likelihood by the end of the century if greenhouse gas emissions continue at their current pace, a new study says. If we aggressively reduce greenhouse gas emissions, however, we can cut that risk substantially, the authors write.
January 22, 2016
The Columbia Center for Climate & Life at Lamont-Doherty Earth Observatory has announced its 2016 Fellows. Michael Puma is focusing on food security and climate shocks, and Park Williams is exploring the influence of climate change on droughts and wildfires.