Today is Earth Day 2013. Earth Day is an annual day on which events are held worldwide to demonstrate support for environmental protection. The name and concept of Earth Day was pioneered by John McConnell in 1969 at a UNESCO Conference in San Francisco. He proposed March 21, 1970, the first day of spring in the northern hemisphere. A month later a separate Earth Day was founded by United States Senator Gaylord Nelson as an environmental teach-in first held on April 22, 1970.
Google is celebrating the 43rd Earth Day with a doodle which shows the four seasons. By clicking on various parts of the doodle you can see fall, spring, summer and winter but also all fases of the moon. You can experience rain, snow and wind and discover animals like ants, fireflies, birds, fish, a bear and a badger.
