This document discusses the history and importance of Earth Day. It explains that Earth Day was founded in 1970 by Senator Gaylord Nelson to raise public awareness about environmental issues. The first Earth Day in 1970 involved massive public demonstrations across the US, and helped lead to the creation of environmental protection agencies and laws. Earth Day has since grown into a global event observed in many countries each year on April 22nd. The document stresses that environmental problems persist and encourages individual action through reducing waste and promoting recycling.