On Saturday, March 29, 2008, Earth Hour invites people around the world to turn off their lights for one hour,  from 8:00pm to 9:00pm in their local time zone. Today, cities around the world, including Copenhagen, Chicago, Melbourne, Dubai, and Tel Aviv, will hold events to acknowledge their commitment to energy conservation.

What’s your carbon footprint?: Carbon Calculator,

Jump in the Water is Fine,

Brooke Trout