Christopher JoyceChristopher Joyce is a correspondent on the science desk at NPR. His stories can be heard on all of NPR's news programs, including NPR's Morning Edition, All Things Considered, and Weekend Edition.
A forest near Trieste, Italy, is largely dead owing to drought stress during the summer of 2012.
Energy Of The Future? California company Sierra Energy is testing out a reactor that turns garbage — like these wood chips, metal fragments and plastics — into synthetic gas that can then be turned into a low-carbon diesel fuel.
California begins a new plan to ration greenhouse gas emissions from large companies on Wednesday. Big companies must limit the greenhouse gases they emit and get permits for those emissions. Above, the Department of Water and Power San Fernando Valley Generating Station, in Sun Valley, Calif., in 2008.
David McNew/Getty Images
Invasive brown tree snakes have gobbled up most of Guam's native forest birds. Without these avian predators to keep their numbers in check, the island's spider population has exploded.
Isaac Chellman/Rice University