Hundreds of millions of people, businesses and governments around the world unite each year to support Earth Hour, which is now the largest environmental event in history. Last year alone, more than 5,200 cities and towns in 135 countries worldwide switched off their lights for Earth Hour 2011!
Sea levels are rising and the oceans are warming. Droughts threaten crops, wildlife and freshwater supplies. From polar bears in the Arctic to marine turtles off the coast of Africa, our planet’s diversity of life is at risk from climate change. Climate change poses a fundamental threat to the