The doodle is animated and shows flowers blooming on shrubs in the shape of the word 'Google', as soon as one visits the homepage. The flowers are of the colour red, yellow and purple.
In 1970, Gaylord Nelson, a US senator marked this day to promote an environmental agenda after seeing a huge oil spill off the coast of Santa Barbara, California. On April 22, 1970, 20 million Americans took to the streets, parks, and auditoriums to demonstrate for the cause.
It was also promoted that President Bill Clinton was to award Senator Nelson the Presidential Medal of Freedom (1995) - the highest honor given to civilians in the United States - for his role as Earth Day founder.
"Groups that had been fighting against oil spills, polluting factories and power plants, raw sewage, toxic dumps, pesticides, freeways, the loss of wilderness, and the extinction of wildlife suddenly realised they shared common values," the official Earth Day website says.
This year's Earth Day theme is "one billion acts of green", which encourages individuals to make simple environmentally conscious pledges.
Text: Shradha Mohanty
Image: Sify News Desk