The time is here again — turn off your lights tomorrow Saturday, March 26 from 8:30 to 9:30 local
time and participate in a global observance called Earth Hour.
Individuals, businesses, and organizations across the world will be
participating. Earth Hour is a
demonstration of how much we can do to cut back power use and prevent
climate change if we all work together.
Do you plan to participate?
Read more on Earth Hour 2011 on National Geographic News.
Visit Earth Hour’s official page.