Bill will cleaner electricity bring higher prices?

Earth Institute's Steven Cohen breaks it down

UK airline Thomson Airways launches aircraft powered by waste cooking oil

Most people are down with sustainability. Too bad no one can agree on what it means.

New research suggests that the footprint of natural gas development is worse than coal.

Scientists say state's water future is "bleak."

As many as 1.5 million new jobs could be created by looming EPA regs, says report.

Surface treatment technology combats emissions.

A photographer goes skyward to capture "industrial scars."