World earth day is celebrated every year on 22nd April.
The day aims to demonstrate support for environmental protection.
World earth day was first celebrated in 1970.
The earth day was first proposed by the UNESCO Conference in San Francisco.
The famous Paris agreement was signed by the United States, China, and some 120 other countries during the earth day 2016. The theme of earth day 2019 was " Protect Our Species ".
World celebrating the 50th anniversary of earth day in 2020.