View these stunning images of some of the world's driest and most mysterious landscapes.
Photo editing by Connie Ricca
- Doing the math on polar sea ice melt
Climate scientists try to determine whether the planet will reach a tipping point.
- Storm knocks out power to 250,000
- Boy buried by avalanche tried to bite his way out
- Temperature swings, snowstorm risk to continue next week
- Bitter cold knocks invasive insects down but not out
- Recent California rain and snow too little, too late