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

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

When it comes to global warming, coal is the gorilla in the room.

Geoengineering - the deliberate, large-scale manipulation of the earth's climate to offset global warming - is a nightmare fix for climate change.

It's not all Obama's fault: His plans to rebuild America's energy infrastructure have been hampered by the recession, and his efforts on global warming have been stymied by Tea Party wackos and weak-kneed Democrats in Congress.

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

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