In what has become an annual event, Earth Hour 2011 is upon us. From 8:30 PM (local time) to 9:30 PM, Earth Hour encourages us to turn off the lights. We'll see you back at 9:30 (or tomorrow!). [Earth Hour] More »

Read more: http://feeds.gawker.com/~r/gizmodo/full/~3/3NQYu4q1EY4/its-earth-hour-tonight-well-understand-if-you-turn-off-the-lights