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 ...

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 been celebrated ever since, slowly but surely picking ...

Spring has sprung and it's time to get outdoors and celebrate nature. And what better time to keep our planet happy and healthy than on Earth Day? See when we celebrate the holiday this year, what ...

In 1970, U.S. Sen. Gaylord Nelson created Earth Day to bring the issue to national attention, with 20 million demonstrators across the country speaking out against the effects of 150 years of ...

Forbes contributors publish independent expert analyses and insights. Anjali Chaudhry is an educator, researcher, and a climate ambassador. This voice experience is generated by AI. Learn more. This ...

9. On Earth Day in 2011, people planted 28 million trees in Afghanistan as part of a "Plant Trees Not Bombs" campaign. 10. Since the first Earth Day, average annual temperatures in the contiguous ...