"Going Green" seems to be the hot phrase these days. We think it’s a good message. All year long we’re going to bring you stories about the simple things we can all do to make a difference.

• Boycotting, sitting in, sleeping out — the quickening politics of climate change
• Stores find a cool path to sustainability with GreenChill program
• Air pollution changes makeup of lakes, creating ‘junk food’ for aquatic life
• ‘No Drugs Down the Drain’ week in LA fights pharmaceutical pollution
• Wildly meaningful gifts from World Wildlife Fund
• Washington in a lather as Kerry-Boxer climate bill passes out of committee
• Climate expert James Hansen to join sleep outs in Boston
• Tweet if you love bees
• Challenge yourself: drive smarter or more smartly?
• Drive Smarter for the holidays