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

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

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

Scientists have identified roughly nine of these major tipping points in Earth’s climate. As of this Earth Day 2026, several ...

Ancient Antarctic ice is revealing a surprising new chapter in Earth’s climate story, stretching back 3 million years. By ...

Every year on April 22, Earth Day offers a chance to take stock of our climate footprints and reflect on our relationship ...

Millions of people around the world will pause, at least for a moment, to mark Earth Day. The annual event is Wednesday.

Elected officials and environmental advocates are celebrating Earth Day this week by noting the threats to the state's ...

Even a moderately strong El Niño during the next 12 to 18 months could drive the average global temperature to about 1.7 ...

Wednesday was Earth Day, and one organization is looking to make a difference through its annual report that provides ...

Governor DeSantis signed a Florida law on Earth Day preventing local governments from adopting net-zero emissions mandates or ...

Two Finger Lakes communities are being recognized by New York State for their ongoing and emerging roles in tackling climate ...