This Saturday, March 27, at 8:30 pm local time, billions of people around the world will be turning off their lights for one hour. Why? It's all in the name of Earth Hour: a worldwide statement about our concern on climate change; turning the lights out on "dirty air, dangerous dependency on foreign oil and costly climate change impacts, and making the switch to cleaner air, a strong economic future and a more secure nation."
This article appears in Mar 24-30, 2010.