James Cameron has donated his record-breaking submarine to science

Last year, James Cameron became the third person in history to venture to the deepest point on Earth, the Mariana Trench's Challenger Deep. He was also the first person to ever make the trip alone – a trip he made in a badass submersible, fittingly named the DEEPSEA CHALLENGER. Now, one year after his historic dive, » 3/26/13 11:30am 3/26/13 11:30am

Incredibly detailed map reveals forest biomass in the United States

In the last several hundred years, human activity has shifted large quantities of the world's carbon from long-term storage (i.e. carbon bound up in rocks, fossil fuels, and forests) into forms of short-term storage such as croplands and pastures, which tend to store less carbon for shorter periods of time. » 1/19/12 7:40am 1/19/12 7:40am