December 4 is the fourth annual Call to Earth Day, and young people across the world are taking part in a collective effort to improve the planet they’ll one day inherit.

Our National Air and Space Museum explains how it became an inspiration and symbol for continuing Earth Day celebrations. Explore events, exhibitions, resources, and podcasts that highlight ...

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 ...