And There Was Darkness for One Hour

Are you participating in Earth Hour? It's tonight from 8:30-9:30 p.m. All you have to do is shut off your lights. Yup, it's that simple.

This event started in Sydney two years ago and branched out as a worldwide effort to save energy and reduce greenhouse gas emissions by up to five percent. That's equivalent to removing 75,000 medium-sized cars from the road. Residences and corporate offices are expected to join in. Even the Empire State building and major New York landmarks (read: tourist traps) will be celebrating Earth Hour.

It requires almost no effort on your part, so why not get in on the game? Lights out, baby!