To celebrate Earth Day, Google doodle team has created a slideshow of animated images from a children's book.

The illustrations narrate the story of a fox dreaming about polluted oceans and the adverse impact of climate change. Upon waking, he and his friends find ways to protect and nurture the environment.

Meanwhile, scientists in the United States are planning a protest march called 'March for Science' which is seen as "a global effort to push back against a political climate that has become increasingly hostile toward sound, evidence-based science and its value to society."

In India, March for Science will be organised in Coimbatore and Hyderabad.

WHAT IS EARTH DAY

Around 47 years ago, industrial development had led to the increased use of insecticide and rising levels of smog leading to a decline in biodiversity.

So on 22 April 1970, people took to the streets to protest against the negative impacts of 150 years of industrial development, which is now marked as the Earth Day.

On this day, over 1 billion people across 192 countries take part in this global event- sign petitions, plant trees and clean up their cities, town and roads.