First held on April 22, 1970, in San Francisco, Earth Day is now celebrated every year in over 175 countries. On this day, more than one billion people around the globe will participate in Earth Day and help Mobilize the Earth. People of all nationalities and backgrounds will voice their appreciation for the planet and demand its protection.
To support the celebration of Earth Day, the U.S. Government Publishing Office offers for sale new and classic official environmental publications that present both scientific and practical information to protect and improve the nation's air, foster the protection of plant and animal species and their habitats, help protect human health, and promote a cleaner and healthier environment for the American people.
