The worldwide demand for solar and wind power continues to skyrocket. Since 2009, global solar photovoltaic installations have increased about 40 percent a year on average, and the installed capacity of wind turbines has doubled.
The U.S. is steadily inching toward installing some offshore wind power, with nearly a dozen projects in the works, according to a new report prepared for the Department of Energy.
Carbon dioxide produced by burning fossil fuels has been linked to rising global temperatures in a number of studies.
Google - one of the largest consumers of power in the world - is to invest for the first time in renewable energy with the purchase of a stake in two North Dakota wind farms.
Opponents of land-based wind farms have a new ally in the form of MIT. Researchers there say that, far from mitigating global warming, land-based wind turbines actually increase the temperature around them.