2008-03-09 10:41:18 - Mark your calendar and join WWF and Actorvist in the global “Earth Hour” movement by turning your lights off from 8-9 p.m. on March 29.

Your simple action of switching off the lights for one hour, combined with millions of others doing the same thing, will deliver a powerful message to the citizens and leaders of the world about the need for action on climate change.

What is Earth Hour? A global event created to symbolize that each of us, working together, can make a

positive impact on climate change—no matter who we are or where we live. Starting at 8 pm local time on March 29, 2008, individuals, communities and businesses around the world will "turn off the lights" for one hour.

Where Will the Lights Go Off? Everyone around the world is encouraged to be involved and shut the lights off in their homes and businesses. Major participation is planned in 25 cities around the world, on six continents. Four Earth Hour flagship cities in the United States—Chicago, Atlanta, Phoenix and San Francisco—are leading the way. Other participating U.S. cities include Denver, Miami and Charlotte. Globally, Copenhagen, Sydney, Manila, Tel Aviv, Bangkok, Dublin and Toronto are among the cities that will be involved.

What can I do?

1. Sign up to participate in Earth Hour.
Pledge to turn off your lights from 8-9 pm on Saturday, March 29, 2008. During that hour, replace old light bulbs with energy-efficient compact fluorescent bulbs (CFLs) and commit to reducing energy consumption in the year ahead.

2. Tell your friends about Earth Hour.
Share this message with your friends and family to encourage them to join with you (and millions of others) in support of Earth Hour.

Thank you for taking a stand against global warming—the greatest threat our planet has ever faced.

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