Earth Day started as a US 'teach-in' 56 years ago. Now it's a global event
Millions of people around the world will pause Wednesday, at least for a moment, to mark Earth Day. It's an annual event founded by people who hoped to stir activism to clean up and preserve a planet that is now home to some 8 billion humans and assorted trillions of other organisms.
Image: Phys.org
Millions of people around the world will pause Wednesday, at least for a moment, to mark Earth Day. It's an annual event founded by people who hoped to stir activism to clean up and preserve a planet that is now home to some 8 billion humans and assorted trillions of other organisms.
Originally published at Phys.org
