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Canada begins mapping Arctic sea floor
Canada's latest bid to assert sovereignty in the Arctic -- a sea floor mapping mission in the Beaufort Sea -- got under way
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'Extreme Water' found at Atlantic Ocean abyss
Located some 3 kilometers underneath the surface of the Atlantic Ocean,, scientists have discovered the hottest water ever found on Earth emanating from two black smokers called Two Boats and Sisters Peak. So hot, in fact, that the fluid has moved from being a fluid, to being a supercritical fluid.
A black smoker is a type of hydrothermal vent, a fissure in the planet’s surface, from which water heated by the geothermal heat from beneath issues in to the surrounding water. Geochemist Andrea Koschinsky, from Jacobs University in Bremen, Germany, and her team have been visiting these vents for several years, lowering thermometers in to them to gauge their temperature.
"It's water, but not as we know it," Koschinsky said of her discovery, referring to the fact that the fluid has gone supercritical.
When the temperature and pressures rise in a liquid, evaporation and/or boiling will occur. However, if both temperature and pressure is pushed to a critical point, the gas and the liquid will merge in to what is called a supercritical fluid. This has been done in laboratory and industrial settings, but never before has it been witnessed occurring naturally before.
And Koschinsky believes that this discovery could give us an idea how our oceans end up with traces of gold, copper and iron mixed in. Located some 3 kilometers underneath the surface of the Atlantic Ocean,, scientists have discovered the hottest water ever found on Ea... more -
Where do YOU stand on Whaling?!?
The image displayed is the Nantucket flag. But I'm confused, I thought "we" realized the brutality of whaling decades ago.
I can say nothing other than this video infuriates me to no end. I cannot believe that this sort of practice carries on.
Check out http://www.seashepherd.org/ to learn more. The image displayed is the Nantucket flag. But I'm confused, I thought "we" realized the brutality of whaling decades ... more -
Not San Diego!
"Floating Landfill" sounds, well, a little disturbing
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Reef Balls
"About 30% of the world's reefs have been destroyed in my lifetime," says the 43-year-old Mr. Barber. If current conditions continue, as many as 70% of the world's reefs could disappear within 50 years, according to NOAA. "About 30% of the world's reefs have been destroyed in my lifetime," says the 43-year-old Mr. Barber. If current condit... more
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He Sleeps With the Fishes
... Today, his remains are part of a concrete ball that helps make up an artificial reef seven miles southeast of Great Egg Inlet, where fish gather, plants grow and anglers fish. 'Green' Burials Try To Preserve Cycle of Life. ... Today, his remains are part of a concrete ball that helps make up an artificial reef seven miles southeast of Great Egg Inlet, whe... more
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Oceanography
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Oceanography
