Hey, Who Turned Off the Lights?!

Join cities across the world- including Chicago, Toronto, Manila, Bangkok, Copenhagen, Melbourne and Tel Aviv- in an hour of conservation.

This Saturday, March 29th, from 8pm to 9pm, the World Wildlife Fund is sponsoring Earth Hour 2008. For one hour, people across the world will turn off their lights in a "symbolic gesture to remind us that we all share the responsibility of global warming."

If you sign up on the Earth Hour website, you'll receive lots of additional tips.

I'm in!