From timeanddate.com:
Earth Day aims to inspire awareness of and appreciation for earth’s environment. It is celebrated on April 22 every year.
What do people do
Earth Day is usually celebrated with outdoor performances, where individuals or groups perform acts of service to earth. Typical ways of observing Earth Day include planting trees, picking up roadside trash, conducting various programs for recycling and conservation, using recyclable containers for snacks and lunches. Some people are encouraged to sign petitions to governments, calling for stronger or immediate action to stop global warming and to reverse environmental destruction. Television stations frequently air programs dealing with environmental issues.
Public Life
Earth Day is not a public holiday and public life, with regard to transport schedules and opening hours for schools and businesses, is not affected.
Background
The April 22 Earth Day, founded by Senator Gaylord Nelson, was first organized in 1970 to promote ecology and respect for life on the planet as well as to encourage awareness of the growing problems of air, water and soil pollution.
Symbols
Symbols used by people to describe Earth Day include: an image or drawing of planet earth; a tree, a flower or leaves depicting growth; or the recycling symbol. Colors used for Earth Day include natural colors such as green, brown or blue.
A few questions for you:
Do you recycle all your paper, cardboard, plastic, and metal?
Do you drink tap water instead of bottled water?
Do you bring your own bag to the store instead using new plastic bags?
Do you turn off the lights and appliances when you’re not using them?
Do you use public transportation?
If you answered “no” to any of these questions, think about how you can turn it into a “yes”!