Earth Day is celebrated on April 22, to inspire awareness and appreciation for the Earth’s environment. It was founded by U.S. Senator Gaylord Nelson, in 19 70, to raise awareness of overpopulation which was the serious problem faced at that time. From that environment moment, April 22 is observed as Earth Day to raise concern about environmental crisis.

The Earth Day Network, non-profit social network, says about Earth Day as “the largest secular holiday in the world, celebrated by more than a half billion people every year.” On this day, environmental activists and groups try to invoke changes in human behavior that affects earth.

As a citizen of the world, we should love and preserve it by taking following actions; conserving energy, recycling waste products, increasing the growth of plant and tree, preserving water, reducing toxins in the air; keeping the environment clean; reducing air, water and land pollution; and loving and giving respect to all living beings who inhabit the earth.

NASA is celebrating this Earth day by publishing high-definition images of the planet taken from the International Space Station. The images depict where all of Earth’s “energy” is located, part of a global network of laser ranging satellites and super-charged GPS receivers, the consequences of global warming and many more. It is shocking to see nearly the entire continent of Antarctica has a hole in the ozone layer.

School students have participated in rally to create awareness of global warming among people.