The planet is almost 25,000 miles around and 4.54 billion years old, and humans are still discovering some of the amazing ...

PENNSYLVANIA, USA — In the days, years, and decades ahead of the first Earth Day, Americans were consuming large amounts of gasoline and fossil fuels. Businesses were able to emit plumes of smoke into ...

Add Yahoo as a preferred source to see more of our stories on Google. Get excited about Earth Day with these interesting facts about the world. Traveling to new places always expands the mind, but ...

There's so much to celebrate in the month of April. The fourth month of the calendar year ushers in warm weather, tulips and Earth Day, the global celebration of our planet and all its splendor. The ...

You might know that Saturday, Apr. 22 is Earth Day, but where did it come from and why do we celebrate? Here are some interesting facts about this worldwide celebration that’s been going on for more ...