Earth Day: April 22

Earth Day: April 22 Earth Day is a day of hope that energizes people around the world. It brings communities together to confront the spectre of disappearing rainforests and a warming climate. It's a day that celebrates the advance of green innovations. Click on the links below to find a selection of Britannica's many articles that provide in-depth treatment of environmental problems and their solutions, and you'll also learn about prominent campaigners and lesser-known innovators who have helped to make Earth Day what it is today.