Google celebrates Earth Day with a series of doodles

Earth Day is celebrated every year on Apr 22, ever since the birth of modern environmental movement in 1970.

The doodles depict the journey of a sleeping fox who has a nightmare about climate change, involving the melting of icebergs and death of aquatic animals.

The fox is shown befriending a cat and a frog, who then adopt a smarter way of living incorporating clean energy sources.

Google also listed five Earth Day tips for helping users create a better planet.