Earth Day is celebrated every year on April 22nd. This event was first celebrated in 1970 and is now recognized as the most important environmental event in the world. The founder of this event is US Senator Gaylord Nelson. He encouraged students to develop environmental awareness projects in their communities. Today, Earth Day is celebrated around the world by more than 500 million people in 184 countries.
Lean more about the Earth Day: www.earthday.net