Millions of people around the world will pause on Tuesday, at least for a moment, to mark Earth Day. It's an annual event founded by people who hoped to stir activism to clean up and preserve a planet ...

Add Yahoo as a preferred source to see more of our stories on Google. Happy Earth Day! For the 55th year, the world is using the day to celebrate Mother Nature and the wonderful planet we live on.

Earth Day has been celebrated across the country — and the globe — for more than 50 years now, and the annual celebration is once again around the corner. While it may seem strange to think of a world ...

Between the beautiful views, luscious landscape, and bountiful critters on the Drummond Ranch, every day is like Earth Day. Whether there's a watercolor sunset or rainbow brightening the Oklahoma sky, ...