Extracting oil from the tar sands is a nasty, polluting, energy-intensive business.

One thing you can say about nuclear power: the people who believe it is the silver bullet for America's energy problems never give up.

Climate change is a global issue - from the point of view of the Earth's climate, a molecule of CO2 emitted in Bejing is the same as a molecule emitted in Sydney.

In the United States, we do a pretty good job of protecting iconic landscapes and postcard views, but the ocean gets no respect.

President Obama is in no danger of being judged by history as an eco-radical.

Ethanol doesn't burn cleaner than gasoline, nor is it cheaper.

For better or worse, the bulk of coal industry jobs are in Appalachia - and when that coal is gone, so are the jobs.