The shape of melting ice depends a lot on water temperature, new research shows. Melting "is one of the many complexities affecting the ice on our planet."

The movement of sea ice, expected to significantly increase this century, could lead to an exchange of microplastics and oil between Arctic neighbors.

Researchers used robotic kayaks to track meltwater and discovered that massive tidewater glaciers may be melting a lot faster than anyone thought.

The melting point of metals usually goes up under pressure, but it may actually go down with about 300,000 times the pressure of Earth's atmosphere.