Add Yahoo as a preferred source to see more of our stories on Google. This year marks the 55th anniversary of Earth Day! Every year on April 22, people worldwide mobilize to address some of the most ...

Earth Day started in the 1970s. Here’s an Earth Day fact everyone should know: Earth Day was first observed on April 22, 1970, followed in 1972 by World Environment Day. It has ...

Earth Day promotes international awareness of environmental protection and earth conservation. It's the perfect opportunity to teach your child about essential concepts, such as going green and ...

To mark Earth Day, NBC’s Brian Cheung joins TODAY to break down numbers and facts about the blue planet, including how it got its name and how many miles food may travel to get to your plate. He also ...

It's Earth Day, a day when people around the world celebrate the planet we call home. In honor of the occasion, here are some facts about Earth you may not know. Earth’s diameter, or the distance ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. IN SPACE - APRIL 04: In this handout image provided by NASA, NASA astronaut and Artemis II ...