World Earth Day 2026: Earth Day, observed every year on April 22, has grown into the world's largest environmental movement, bringing together over a billion people across 193 countries. It is not ...

It is not pleasant to imagine that human activity is making the planet uninhabitable, but we typically think of this in terms of greenhouse gases, rising sea levels or acidifying the oceans. We aren't ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. After a few years of speeding up, our planet now appears to ...

Earth Day is April 22. Here's what to know about how Earth Day happened and how to celebrate our planet this April.

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 really is a symbol of the environmental movement," Sarah ...