NPR | March 21, 2013 12:04 p.m.
The climate guru's latest book is a sweeping survey of economics, politics and technology.
NPR | Jan. 11, 2013 5:35 a.m.
The star attraction at a Pennsylvania Farm Show will soon be put to work as methane gas.
NPR | Jan. 09, 2013 8:30 a.m.
For two years, photographer Jamey Stillings has documented the complications of sustainable energy.