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 ...

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 ...

About 71% of Earth’s surface is covered by water, and 96.5% of that water is found in the oceans.

A college student in a gas mask "smells" a magnolia blossom during the first Earth Day on April 22, 1970 in New York City. Credit - AP More than 8 billion people inhabit Earth, and soon a springtime ...

JACKIE. YEAH. GOOD AFTERNOON. IT’S A REALLY NICE DAY OUT HERE. OF COURSE, WE’VE GOT THE SUN SHINING ON THIS EARTH DAY. A LITTLE BREEZY, SO MY HAIR HAS BEEN KIND OF GOING HERE. THERE AND EVERYWHERE. A ...

Ah, Earth. We may not think about our planet on a day-to-day basis, but the world we live in is a pretty interesting place. The third rock from the Sun—and to this day, the only one with known ...