"" Today is International Earth Day "" So please show in pictures it's Earth Day. Stand up for the planet. Every spring on April 22 ; the modern Environmental movement is recognized with globle day of action; demonstrations ; and celebrations; otherwise known as Earth Day. Earth Day is an annual event celebrated on April 22. Worldwide, various events are held to demonstrate support for environmental protection. First celebrated in 1970, Earth Day events in more than 193 countries are now coordinated globally by the Earth Day Network. Earth Day is an annual event celebrated on April 22. Worldwide, various events are held to demonstrate support for environmental protection. ... 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....