Earth Hour is a global voice on climate change in which people across the world turn out their lights for one hour to encourage creating a cleaner, safer and more secure future.
Notable U.S. landmarks such as New York City’s Empire State Building, Washington D.C.’s National Cathedral, the Strip in Las Vegas, Coca-Cola’s headquarters in Atlanta, and the Willis Tower (formerly the Sears Tower) in Chicago are among the hundreds of sites that will turn off non-essential lighting for the hour, in what will undoubtedly be the largest-ever call to action on climate change.
Last year Earth Hour attracted its largest amount of support thus far, with more than a billion people in 128 participating countries switching off their lights to show support. Earth Hour is a global initiative in partnership with the WWF to get individuals involved in showing support for environmentally sustainable actions. Beginning in Sydney in 2007, Earth Hour has created history by becoming the largest voluntary action ever witnessed.
The date was set in March because it is close to the Spring Equinox, a period when the most number of countries around the world will experience darkness in the 8 o’clock hour.