Earth Day : 22 April.

Earth Day : 22 April.22 April 2013 :: Earth Day is an annual day on which events are held worldwide to demonstrate support for Environmental protection. Earth Day is observed on April 22 each year. The April 22 date was designated as International Mother Earth Day by a consensus resolution adopted by the United Nations in 2009. Earth Day is now coordinated globally by the Earth Day Network, and is celebrated in more than 192 countries every year.