A study published Monday in the Proceedings of the National Academy of Sciences found that increases in salinity in seawater ...

For years, scientists have debated whether a giant thick ice shelf once covered the entire Arctic Ocean during the coldest ...

New research reveals Antarctic sea ice has hit record lows three times since 2017, creating cascading effects on global ...

For decades, scientists believed the Arctic Ocean was sealed under a massive slab of ice during the coldest ice ages — but new research proves otherwise. Sediment samples from the seafloor, paired ...

New research challenges the long-held belief that the Arctic Ocean was covered by a massive ice shelf during ice ages.

A salty surge in the Southern Ocean is melting Antarctic sea ice from below — and causing dramatic changes scientists didn’t ...

On her first dedicated scientific voyage to Antarctica in March, the Australian icebreaker RSV Nuyina found the area sea-ice free. Scientists were able to reach places never sampled before.

Lava flows, near mile-thick glaciers and ice age floods layered and carved up this landscape.

Everything we need is taken across the ice in a convoy of tracked snow vehicles. A hot water drill is used to make a small hole through the 500m ice shelf, providing access to the sediment below.

Even during the coldest 750,000 years, the Arctic Ocean had open water and sustained life thanks to seasonal sea ice. “Our ...

As human activity warms our planet, the ocean absorbs over 90 percent of the excess heat. This increases water volume and melts ice sheets and glaciers, contributing to sea level rise. This video ...