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Strange things are happening in the North Sea. Cod stocks are slumping faster than over-fishing can account for, and Mediterranean species like red mullet are migrating north. ...Several sea birds are also in trouble. Kittiwake numbers are falling fast and guillemots are struggling to breed. ...And, earlier this summer, hundreds of fulmar (a relative of the albatross) corpses washed up on the Norfolk coast, having apparently starved to death.
Scientists suspect these events are linked and they are trying to work out how.
Nothing is certain yet, but some believe a dramatic change in North Sea plankton is responsible. And, what is more, they blame global warming.
Originally posted by yeah right
darkmind
how dare you...
how dare you call yourself a TEACHER
and do NOT know what a core sample is???
NOT the core like (center of an apple)
core as in DRILL BIT core
pull the eraser out of your PENCIL use the metal part (eraser is the CORE)
to cut out a chunk of ANY THING (that is a core sample)
used all over the world,, MILLIONS OF THEM
how do you think they FIND OIL
and yout K-T boundary.........from a core sample!!!!!
and your "history" is ONLY what we discovered in the last say 2000 years
and ONLY what our government WANTS YOU TO KNOW..
and you say ,, you TEACH PEOPLE.??? ..............oh, god
do your historybooks STILL SAY WE ALL CAME OUT OF EGYPT/BABYLON?????
there are only nine planets???
you must have went to the SAME COLLEGE as my bank manager
she NEEDED a CALCULATOR,, to tell me that 3 points on a $100,000.00 loan
was $3000.00
and that was only AFTER she told me it was only $300.00 and i argued with her..
no wonder this country is loosing pace FAST!!!!!!!!!
Originally posted by protostar
The thermal vents and the mega plume are interconnected deep within the
earth aren't they?
Material pushing up from the CMB being at thousands of
degrees; into the oceans heating them up. Why is that so UNHEARD OF?
And why is the divergence of the Arabian plate with the African plate which are
spreading apart creating a "new ocean" in Africa? Heating from below perhaps?
Originally posted by Essan
Originally posted by protostar
Material pushing up from the CMB being at thousands of
degrees; into the oceans heating them up. Why is that so UNHEARD OF?
Such events have been happening throughout geological history. Things are actually quite quiet on that front these days. Imagine if we had a n underwater flood basalt eruption? Now that would cause an increase in sea level temps.
Hydrothermal "Megaplume" Found in Indian Ocean
An enormous hydrothermal "megaplume" found in the Indian Ocean serves as a dramatic reminder that underwater volcanoes likely play an important role in shaping Earth's ocean systems, scientists report. ...The plume, which stretches some 43.5 miles (70 kilometers) long, appears to be active on a previously unseen scale. ...The appearance of hydrothermal vents around the world suggests that they are a far more common part of the ocean system than once believed and could be a major influence on circulation patterns and ocean chemistry. ...Scientists are only beginning to identify the tectonic conditions that may indicate where the fields can be found, but the possible locations are increasing. ..."I'd be surprised if in the next five years we didn't experience a mini-revolution in terms of finding these [fields] in places where they are not supposed to exist," said geophysicist Robert Reves-Sohn of the Woods Hole Oceanographic Institution.
Hydrothermal vents are volcanic hotspots that emit gasses and mineral-enriched water as hot as 760°F (400°C). The heat from these vents supports unique ecosystems where creatures survive using thermal and chemical energy in place of sunlight. ...Megaplumes like the one found in the Indian Ocean are probably caused by undersea volcanic eruptions, though scientists aren't yet certain. ..."Once formed they can possibly hang around for years," Murton said. The heat from such events could have a dramatic effect on ocean circulation, which plays a role in determining Earth's climate. ..."The energy content is an order of magnitude greater [than ordinary plumes], and the thermal power may be many orders of magnitude greater," Murton said.
"A normal hydrothermal vent might produce something like 500 megawatts, while this is producing 100,000 megawatts. It's like an atom bomb down there." ..."Some studies estimate that for the Pacific, background thermal heating might increase ocean circulation by up to 50 percent," Murton said. ...Regular hydrothermal fields stir the water for only a few hundred meters (about a thousand feet) above the ocean floor. "But these megaplumes can reach a column of 1,000 to 1,500 meters [3,280 to 4,920 feet], so it reaches right up into the midwater," he said. ...But even the Indian Ocean megaplume may be small compared to larger underwater eruptions that have as yet gone undetected. ..."At the moment those that we've seen have come from small eruptions in the larger scheme of things," he said. ..."But we know when we look at the ocean floor that there have been much larger eruptions, so we can only speculate about what magnitude of event plumes would come from those."
The new data on hydrothermal fields and megaplumes underscores the fact that volcanic activity on the ocean floor remains a largely mysterious phenomenon.
Originally posted by protostar
www.sciencedaily.com...
This article will clear up the misunderstanding of how the oceans are
warming and what it is doing to the atmosphere. Click the links through to
the goddard space flight site for more info.
The solar/earth connection is the key here. All radiation is received by the
earth and maintains or releases it by ANY means. Bottom line, the more
radiation received, the more that is released back into the atmosphere.
Originally posted by protostar
Has not there been alot of flooding and humungous waves and basically
strange atmospheric dare I say "anomolies" lately?
What does that have to do with the ocean crust? It's the thinnest there, the crust of the earth.
Thin and as this material moves upward and onward, outward it goes.
right or wrong? YOU POST LINKS TO DISPUTE THIS.