World Earth Day is celebrated every year on April 22 Worldwide.
The first Earth Day, on April 22, 1970, was marked by 22 million Americans who marched to protest against damage done to the environment.
This day is celebrated to remind us about the need to protect and safeguard our environment so that we can make this planet a better place for our future generations..
The theme for Earth Day 2019 is 'Protect Our Species'. It aims to draw attention to the rapid extinction of species across the world.