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

New study: Ocean temperature 'surprises' becoming more common

August 5, 2019—A new study published this week shows how marine ecosystems around the world are experiencing unusually high ocean temperatures more frequently than researchers previously expected. These warming events, ...

Arctic sea ice loaded with microplastics

At first glance, it looks like hard candy laced with flecks of fake fruit, or a third grader's art project confected from recycled debris.

New insights into the origin of life

A famous experiment in 1953 showed that amino acids, the building blocks of proteins, could have formed spontaneously under the atmospheric conditions of early Earth. However, just because molecules could form doesn't mean ...

Plastic junk spawns desert island disaster in Pacific

Floating plastic garbage has swamped a remote Pacific island once regarded as an environmental jewel and scientists say little can be done to save it while a throwaway culture persists.

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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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