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 ...

A vast, long‑suspected mass of water has reappeared in the tropical Atlantic, confirming decades of theory and reshaping how ...