These points of no return are specific moments when the planet has warmed so much that certain effects become irreversible.

Thousands of events are scheduled across the globe to celebrate Earth Day on Tuesday, April 22. Here's a handful happening in ...

April 22 is traditionally known as Earth Day, the occasion where we pause as temporary travelers on our 'blue marble' to ...

The holiday remains one of the largest secular observances in the world, used to spotlight ongoing threats including plastic ...

As you read this, the North American continent’s underside is dribbling away into Earth’s molten mantle. And according to ...

To mark the global holiday focused on a more sustainable future, many Americans have engaged in nationwide protests, as ...

Gaylord Nelson, the late U.S. senator and governor of Wisconsin, is considered the founder of Earth Day, which started in ...

April 22 (UPI) -- Google is celebrating Earth Day with a new Doodle. Each letter of the search engine was replaced with ...

One of the most enduring questions in anthropology is why Neanderthals, our closest extinct human relatives, completely ...

The restrictions on rare earth minerals and related magnets came in response to Trump’s escalating tariffs and we’re now ...

Looking for something to do to celebrate Earth Day in the Seattle area? Here are some options, presented by The Seattle Times ...

Photos of the French Alps, Utah, the Maldives, Quebec, Australia and Argentina show the naturally occurring letters.