How a 'shadow zone' traps the world's oldest ocean water

New research from an international team has revealed why the oldest water in the ocean in the North Pacific has remained trapped in a shadow zone around 2km below the sea surface for over 1000 years.

Cave mazes

Analysis of caves in Israel deserts brings to light the ancient groundwater circulation of north-western Arabia. The cave distribution, morphology, and deposit evidence indicates that they formed through dissolution by rising ...

Wave beams mix and stir the ocean to create climate

Ocean circulation patterns have a profound effect on global climate. Waves deep within the ocean play an important role in establishing this circulation, arising when tidal currents oscillate over an uneven ocean bottom. ...

Could climate change shut down the Gulf Stream?

The 2004 disaster movie "The Day After Tomorrow" depicted the cataclysmic effects—superstorms, tornadoes and deep freezes— resulting from the impacts of climate change. In the movie, global warming had accelerated the ...

Greenland ice sheet melting can cool subtropics, alter climate

A new study finds evidence that the last time Earth was as warm as it is today, cold freshwater from a melting Greenland ice sheet circulated in the Atlantic Ocean as far south as Bermuda, elevating sea levels and altering ...

Scientists unravel the process of meltwater in ocean depths

An international team of researchers has discovered why fresh water, melted from Antarctic ice sheets, is often detected below the surface of the ocean, rather than rising to the top above denser seawater.

Wind-blown Antarctic sea ice helps drive ocean circulation

Antarctic sea ice is constantly on the move as powerful winds blow it away from the coast and out toward the open ocean. A new study shows how that ice migration may be more important for the global ocean circulation than ...

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