As the planet warms, it risks crossing catastrophic tipping points: thresholds where Earth systems, such as ice sheets and rainforests, change irreversibly over human lifetimes. Melting ice sheets in ...

Along the Atlantic seaboard, more than 135 million Americans live in a zone where the ocean is no longer rising steadily but is poised to climb in abrupt, uneven surges as a key Atlantic current ...

For more than a century, a patch of cold water south of Greenland has resisted the Atlantic Ocean's overall warming, fueling debate among scientists. A new study identifies the cause as the long-term ...

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 ...

Understanding how the oceans behaved in the past — especially during extremely cold periods — is crucial for testing the models used to project future climate change. The peak of the last ice age, the ...