For more than 45 years, WWF has been protecting the future of nature. The world’s leading conservation organization, WWF works in 100 countries and is supported by like you and me - the 1.2 million members in the United States and close to 5 million globally. WWF's unique way of working combines global reach with a foundation in science, involves action at every level from local to global, and ensures the delivery of innovative solutions that meet the needs of both people and nature. WWF also launched Earth Hour three years ago, and has become a global phenomenon; its non-partisan approach to linking energy use and climate change has captured the world’s imagination. Staying involved will help each of us transform the Earth Hour event into a full-fledged movement.