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 ...

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 ...

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 ...