Earth Hour is a global event to show care of our planet. On March 31, 2012 at 8:30 local time, everyone should turn off the essential lights in the house for an hour to show care! I have never participated, and will love to!
A great resource for a unit on garbage, the “Three Rs”, or protecting the environment. This website does a great job of explaining what happens to the items we discard throughout our life and solutions for doing a better job at preserving our planet.