News tagged with ocean currents

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Ice ages only thanks to feedback

Ice ages and warm periods have alternated fairly regularly in the Earth's history: the Earth's climate cools roughly every 100,000 years, with vast areas of North America, Europe and Asia being buried under ...

Aug 07, 2013 4.3 / 5 (32) 47 | with audio podcast

When tectonics killed everything

A new paper reveals how the worst extinction in Earth's history may have been tied to the formation of Supercontinent Pangea. The catastrophe wasn't triggered by an impact from above—unlike another well-known ...

Nov 25, 2013 3.9 / 5 (29) 8 | with audio podcast

How the ice ages ended

A study of sediment cores collected from the deep ocean supports a new explanation for how glacier melting at the end of the ice ages led to the release of carbon dioxide from the ocean.

May 01, 2013 4.5 / 5 (24) 48 | with audio podcast

Chasing the black holes of the ocean

According to researchers from ETH Zurich and the University of Miami, some of the largest ocean eddies on Earth are mathematically equivalent to the mysterious black holes of space. These eddies are so tightly ...

Sep 23, 2013 4.5 / 5 (22) 3 | with audio podcast

Massive Southern Ocean current discovered

(PhysOrg.com) -- A deep ocean current with a volume equivalent to 40 Amazon Rivers has been discovered by Japanese and Australian scientists near the Kerguelen plateau, in the Indian Ocean sector of the Southern ...

Apr 26, 2010 4.8 / 5 (19) 0 | with audio podcast

Sea Salt Holds Clues to Climate Change

(PhysOrg.com) -- We know that average sea levels have risen over the past century, and that global warming is to blame. But what is climate change doing to the saltiness, or salinity, of our oceans?

May 01, 2009 4.5 / 5 (20) 3

Turning the tide to energy

NASA researchers who developed a new way to power robotic underwater vehicles believe a spin-off technology could help convert ocean energy into electrical energy on a much larger scale. The researchers hope ...

Mar 06, 2009 3.4 / 5 (24) 6

Gulf of Mexico oil spill in the Loop Current

(PhysOrg.com) -- Scientists monitoring the US oil spill with ESA's Envisat radar satellite say that it has entered the Loop Current, a powerful conveyor belt that flows clockwise around the Gulf of Mexico ...

May 19, 2010 4.9 / 5 (13) 12 | with audio podcast