Earth Day is a global event which aims to highlight the importance of protecting the environment. It takes place every year on 22 April. It was set up in 1970 by Gaylord Nelson, a US senator and ...

The first Earth Day happened on 22 April 1970 in the USA, in response to a spill from an oil tanker. It has since grown to become a global event marked by many millions of people around the world.