Earth Day began as a protest in 1970, but its meaning has evolved. Here’s how it changed - and what it represents today.

Climate change is slowing Earth's rotation at a pace scientists say hasn't occurred in at least 3.6 million years, according to new research from the University of Vienna and ETH Zurich. The planet's ...

Earth Day, which began in 1970, is celebrated each year on April 22.

Researchers including a number from the University of Exeter, have identified the most urgent unanswered questions about ...

Unfortunately, none of them are optimistic. Fortunately, we have the power to vote out politicians who lack the courage to ...

In a year of grim climate and environment news, we’ve compiled several hopeful signs about our planet’s future.

A triple threat of pollution, extinction and warming temperatures is altering the way the planet smells. Scientists are only beginning to understand the stakes for humans ...

The new study described this "almost unprecedented rate of increase" in the length of an average day as a quantifiable consequence of Earth's rising oceans. Reading time 3 minutes It often feels like ...

NASA spokesperson Lauren Low told PolitiFact that one of the reasons Earth appears duller is because the new photo was taken at night, with only moonlight lighting the planet. The 1972 photo was taken ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. New research shows that rising sea levels caused by melting ice sheets ...