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

Bigger doesn't mean better for hatchery-released salmon

Fish permeate the culture of the Pacific Northwest (PNW). In particular, the iconic salmon has been an important part of the region for thousands of years, from ancient Native American trade routes and legends to modern fishing ...

How giant kelp may respond to climate change

When a marine heat wave hit California's coast in 2014, it brought ocean temperatures that were high for Northern California but fairly normal for a Southern California summer. Much of the giant kelp in the north died in ...

Something old, something new in the ocean's blue

Charles Darwin suspected something in the "clear blue water" of the ocean that was even smaller than the protozoa he could see under the microscope. "Today we know that every liter of ocean water is swarming with hundreds ...

Last Arctic ice refuge is disappearing

The oldest and thickest Arctic sea ice is disappearing twice as fast as ice in the rest of the Arctic Ocean, according to new research.

page 1 from 23

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.

This text uses material from Wikipedia, licensed under CC BY-SA