India, April 22 -- Every year on April 22, people across the world unite to mark Earth Day, organising events and raising awareness of environmental threats. Earth Day is celebrated with a mission of broadening, educating and activating the environmental movements worldwide.

This year, Earth Day is being celebrated under the theme of 'Our Power, Our Planet', calling everyone to unite for renewable energy and make an effort to triple the clean energy by 2030.

Earth Day is an opportunity for people to contribute towards the alarming crisis faced by Earth and also to celebrate the green initiatives taken around the world. The crisis discussed ranges from increased plastic pollution and depletion of resources.

According to Earthday.org, th...