Russia's ghost fleet of sanctions-busting oil tankers are using the Turkish-controlled Bosphorus to reach the Black Sea, causing headaches for Turkey.

Microplastics in rivers, lakes, and oceans aren’t just drifting debris—they’re constantly leaking invisible clouds of ...

As the Arctic melts and people spend more time there, defining our relationship to sea ice becomes more necessary.

Earth's continents are losing 4 Olympic swimming pools' worth of fresh water every second, with dire consequences for jobs, ...