Related topics: climate change · earth · nasa · carbon dioxide · atmosphere

Adventurers cross Arctic Ocean on skis despite thinning ice

Two adventurers have successfully crossed the Arctic Ocean on skis after persevering through brutal conditions, briefly running out of food, and struggling to traverse thin ice caused by global warming, their team said on ...

Study says warming world could devastate fisheries, reefs

A study commissioned by 14 seafaring nations predicts that unchecked climate change could devastate fishery industries and coral reef tourism, causing hundreds of billions of dollars in losses by 2050.

Understanding the impact of deep-sea mining

Resting atop Thomas Peacock's desk is an ordinary-looking brown rock. Roughly the size of a potato, it has been at the center of decades of debate. Known as a polymetallic nodule, it spent 10 million years sitting on the ...

New projection: Faster rising seas forecast in South Florida

New scientific projections released Wednesday predict that ocean levels will rise even faster than previously forecast over the next four decades in low-lying southeastern Florida, which is already prone to frequent flooding ...

Seal takes ocean heat transport data to new depths

The Antarctic Circumpolar Current flows in a loop around Antarctica, connecting the Atlantic, Pacific and Indian oceans. It is one of the most significant ocean currents in our climate system because it facilitates the exchange ...

Half-million crabs killed by plastic debris on remote islands

In the first study of its kind, an IMAS-led research team estimates that around 570 000 hermit crabs have been killed on the Cocos (Keeling) Islands in the Indian Ocean and Henderson Island in the Pacific after being trapped ...

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Ocean

An ocean (from Greek Ωκεανός, Okeanos (Oceanus)) is a major body of saline water, and a principal component of the hydrosphere. Approximately 71% of the Earth's surface (an area of some 361 million square kilometers) is covered by ocean, a continuous body of water that is customarily divided into several principal oceans and smaller seas. More than half of this area is over 3,000 meters (9,800 ft) deep. Average oceanic salinity is around 35 parts per thousand (ppt) (3.5%), and nearly all seawater has a salinity in the range of 30 to 38 ppt.

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