Although the ocean covers roughly 71% of Earth’s surface, more than 80% of that ocean has yet to be mapped, explored, or even ...

Damming, over-extraction, pollution and, increasingly, the human-caused climate crisis are driving the decline of the Caspian Sea. Some experts fear it’s being pushed to the point of no return.

A new island has emerged in the Caspian Sea as water levels decline, offering scientists insight into regional climate change, tectonic shifts, and the potential for new habitats.

Scorching days and sweaty hours — that's what summer mostly feels like. While water is always the first go-to for relief, it doesn’t always replace what's lost in the heat. Plain water ...

The Caspian Sea is the planet’s largest inland sea and its largest lake, an enormous body of water roughly the size of Montana. Its looping coastline stretches more than 4,000 miles and is ...