World Earth Day has been celebrated as an annual event since April 22, 1970.
The theme of World Earth Day 2020: Climate Action is a theme of World Earth Day 2020. Every year there is a different theme for Earth Day.
Worldwide events are held to demonstrate support for environmental protection. The theme of Earth Day 2019 is “Protect Our Species”.
It was first celebrated in 1970, and is now coordinated globally by the Earth Day Network and celebrated in more than 193 countries each year.
The idea of commemorating such a day was propounded by Gaylord Nelson, an American environmentalist and politician.
According to the United Nations, International Earth Day is celebrated to remind each of us that the Earth and its ecosystems provide us with life and sustenance.
The Earth Day also recognizes a collective responsibility, as called for in the 1992 Rio Declaration (Earth Summit), to promote harmony with nature and the Earth to achieve a just balance among the economic, social and environmental needs of present and future generations of humanity.
This day provides an opportunity to raise public awareness around the world to the challenges regarding the well-being of the planet and all the life it supports.