Arctic sea ice has large effects on the global climate. By cooling the planet, Arctic ice impacts ocean circulation, ...

Greenland’s vast ice sheet is not just shrinking, it is rearranging the physics of the oceans around it. As the ice melts and ...

Scientists studying ancient ocean fossils found that the Arabian Sea was better oxygenated 16 million years ago, even though ...

Meltwater runs across the Greenland ice sheet in rivers. The ice sheet is already losing mass and could soon reach a tipping point. Maria-José Viñas/NASA As the planet warms, it risks crossing ...

The last ice age did not shut down Atlantic ocean currents, and that discovery may help explain future climate risks.

During the last ice age, the Atlantic Ocean’s powerful current system remained active and continued to transport warm, salty water from the tropics to the North Atlantic despite extensive ice cover ...

When most of us look out at the ocean, we see a mostly flat blue surface stretching to the horizon. It’s easy to imagine the ...

Rapid Stratospheric Temperature Spikes Over the Arctic When temperatures in the polar stratosphere suddenly climb, climate analysts instantly recognize this as one of the most critical warning signs.

The Last Glacial Period was characterised by dramatic shifts in climate and ocean circulation that have deeply influenced global carbon cycles and climate variability. Evidence from sediment cores, ...