Earth - Environment news

US power plant emissions down, study finds

Power plants that use natural gas and a new technology to squeeze more energy from the fuel release far less of the greenhouse gas carbon dioxide than coal-fired power plants do, according to a new analysis ...

Jan 09, 2014 4.4 / 5 (7) 9 | with audio podcast

Clean energy could lead to scarce materials

As the world moves toward greater use of low-carbon and zero-carbon energy sources, a possible bottleneck looms, according to a new MIT study: the supply of certain metals needed for key clean-energy technologies.

Apr 09, 2012 3.9 / 5 (8) 25 | with audio podcast