For Earth Day on April 22, interesting facts including who invented it, why it's on that date, and how it turned into a global movement.

Earth Day is one of the most popular and widespread non-religious holidays in the world, recognized in over 100 nations across continents. Although the event was primarily based in the United States, ...

There are almost 200 nations on the planet and every one of them has some stunning trivia you need to hear about.Here are interesting facts about every nation on Earth! WATCH OUR OTHER VIDEOS: 25 ...

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 ...

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 ...

Earth serves as our fragile and precious home. As far as scientists are aware, it's the only astronomical object known to ...

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 ...