It's estimated that 1 billion people observe Earth Day each year. You can celebrate at festivals in Springfield or ...

Looking for something to do to commemorate Earth Day? Here are five things anyone can do to observe April 22, the 55th anniversary of Earth Day. Tree planting has long been a popular activity.

Earth Day is April 22 and is celebrated across the country, including in Wisconsin, with environmental events, celebrations ...

Earth Day falls on April 22 each year but is not a federally recognized holiday, according to USA TODAY.