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

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 ...

A climate tipping point is a critical threshold where a small environmental change can lead to dramatic and often ...

In two recent studies, researchers suggest a weakening ocean current system is to blame for a persistent cold spot in the ...

A massive and surprising change is unfolding around Antarctica. Scientists have discovered that the Southern Ocean is getting ...

The ocean around Antarctica is rapidly getting saltier at the same time as sea ice is retreating at a record pace.

An unprecedented Arctic heat wave caused record high temperatures in Greenland and Iceland, raising major concerns among ...

A patch of the Atlantic Ocean just south of Greenland is cooling while much of the world warms. The origin of this "cold blob ...

First created during the Cold War, Project Iceworm saw the US plan to store hundreds of ballistic missiles in a system of ...

Earth’s major climate goal is too warm for the polar ice sheets, study says If Earth stays at its current levels of warming — below policymakers’ goal of 1.5 degrees Celsius — polar ice ...