New figures from the Energy Information Administration show clean energy growth over the last decade

Traffic planners restrain cars in favor of walking and public transit

Us: Huh?

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

EPA tightens regs on drinking water toxicity.

Economic recession blamed for decline.

From melting ice caps to volcanic hot springs, Roni Horn's art is inspired by Iceland's shifting landscape.

In Portland, a federal green building project takes shape.