In the '90s, Hayes organized a global Earth Day — observed by an estimated 200 million people in more than 140 countries, turning it into an international event. In the U.S., Earth Day is celebrated each year on April 22, according to the Environmental Protection Agency.

Today we celebrate Earth Day. This holiday was first celebrated in 1970. It is a great day to think about the beautiful environment

The time to celebrate all things nature is just around the corner with Earth Day on Tuesday. In honor of Mother Earth, several businesses and entities will be observing the holiday with discounts, environmentally friendly activities and offers around Southern California.