The current Yellowstone spill involved 42,000 gallons of oil. That’s bad enough. But the Keystone XL pipeline could dump 6.9 million gallons of oil into the river.

Republicans want to repeal the incandescent light bulb "ban," but since it's NOT SUCH A BRIGHT IDEA (har har), their bill probably won't pass.

Trees can suck up carbon from the atmosphere, delaying disaster for a little while. But so can cities, it turns out. Parks, gardens, abandoned lots, golf courses, sports fields, and river banks suck up more carbon than anyone imagined.

Using profits to drive future profits, natural gas company Chesapeake Energy Corp. invests in vehicles powered by natural gas. (Related: This American Life takes on fracking.)

In India, ending tax breaks for wind farms could slash installations by 15 percent.

These snails benefit from being eaten — if they survive the trip through a bird gut.