One of the most important functions of the ocean is to move heat around the planet via currents. Think of the ocean as Earth's central heating system, constantly redistributing thermal energy from the ...

A series of ocean currents in the Atlantic drive heat northward and control much of the world’s weather. Scientists believe the current — called the Atlantic Meridional Overturning Circulation, or ...

The Atlantic Meridional Overturning Circulation (AMOC) gets disrupted because of the increased thawing of Arctic ice.

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 ...