At 8:30pm, Saturday March 27, thousands of global individuals, cities, and companies will make a little difference, save a little energy, and have some fun in the dark.

For more information about who's participating, events near you, and exactly how much impact one hour can have, visit Earth Hour's Website.

It's not too late to plan our own earth hour..simply turn off your lights at 8:30pm local time and you'll automaticaly join the largest rolling blackout ever.  Read by candlelight, gaze at the stars, play graveyard tag, or just sit in dark and relax.