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Nov. 24, 2008 -- Glaciers high in the Himalayas are dwindling faster than anyone thought, putting nearly a billion people living in South Asia in peril of losing their water supply.
Throughout India, China, and Nepal, some 15,000 glaciers speckle the Tibetan Plateau, some of the highest land in the world.
Anyone have any specific ideas as to how this may, or will, play out?
Originally posted by Saf85
Nothing more than more global warming propeganda. All REAL global temperature data has shown a steady decrease in temeprature since 1999, global warming advocates are always fabricating evidence to keep their cash cow scam going. How long will it be before green taxes are as common place as income taxes? In essence we will be taxed just for happening to be alive and nothing more!
Nothing more than more global warming propeganda.
Originally posted by pause4thought
reply to post by Saf85
Nothing more than more global warming propeganda.
It never ceases to amaze my how GW deniers can stare facts in the face and deny they exist.
The Antarctic will be a desert before they admit they were wrong.
Originally posted by sos37
It never ceases to amaze me how GW proponents overlook reports like these:
It never ceases to amaze me how GW proponents overlook reports like these...
It never ceases to amaze my how GW deniers can stare facts in the face and deny they exist.
Originally posted by Darthorious
I have yet to see anything that shows global warming. The only thing I am aware of is that the last year's average mean temp sense it has been calculated actually fell in the bottom 78 record lows globally. When this happened a couple scientists if you want to call them that started touting the earth is now cooling and we could have a mini ice age.
So what is it ice age or global warming? They can't make up their minds. Even Gore is starting to back off the global warming stage.
Sriously, there is no point in arguing with people, who when given evidence just refute it with no counter evidence.
Lonnie Thompson of Ohio State University and a team of researchers travelled to central Himalayas in 2006 to study the Naimona'nyi glacier, expecting to find some melting.
Mountain glaciers have been receding all over the world since the 1990's and there was no reason this one, which provides water to the mighty Ganges, Indus, and Brahmaputra Rivers, should be any different.
But when the team analyzed samples of glacier, what they found stunned them. Glaciers around the planet are usually dated by looking for two pulses pulse of radioactivity buried in the ice.
These are the leftovers from American and Russian atomic bomb testing in the 1950's and 1960's.
In the Naimona'nyi samples, there was no sign of the tests. In fact, the glacier had melted so much that the exposed surface of the glacier dated to 1944.
"We were very surprised not to find the 1962-1963 horizon, and even more surprised not to find the 1951-1952 signal," Thompson said. In more than twenty years of sampling glaciers all over the world, this was the first time both markers were missing
Sarah Das of the Woods Hole Oceanographic Institution, US, and colleagues camped out next to a 3-kilometre-wide lake in western Greenland. In July 2006, their seismometers picked up rumbles from the ice, then 30 minutes later the water started draining.
The entire lake was swallowed up in about an hour and a half.
Konrad Steffen of the University of Colorado points to Greenland's so-called Dead Glacier, stagnant for decades until it recently became active, which speeds up by 80%t during the summer.
Scientists from British Antarctic Survey (BAS), Durham University and Germany's Alfred Wegener Institute for Polar and Marine Research (AWI) collected boulders deposited by three glaciers in the Amundsen Sea Embayment -- a region currently the focus of intense international scientific attention because it is changing faster than anywhere else on the WAIS and it has the potential to raise sea-level by around 1.5 metres.
Lead author Dr Joanne Johnson of BAS says, "Until now we didn't know much about the long-term history of this part of the West Antarctic Ice Sheet because the region is incredibly remote and inaccessible. Our geological findings add a new piece to the jigsaw SNIP
results show that Pine Island Glacier has 'thinned' by around 4 centimetres per year over the past 5,000 years, while Smith and Pope Glaciers thinned by just over 2 cm per year during the past 14,500 years. These rates are more than 20 times slower than recent changes
in Earth history, larger climatic events occurred following the rapid freshening of the North Atlantic. The rapid release of freshwater from a large lake near Hudson Bay into the subpolar North Atlantic 8,200 years ago caused a century-long interval of colder and drier conditions over much of the northern hemisphere .
During the last four decades, the oceans have warmed over a very large depth range. That indicates that the ocean has mitigated some of the warming expected from greenhouse gas increases because even a small temperature change in the ocean requires an enormous amount of heat energy to be absorbed by the ocean.
My subject has to do with the warming of world's oceans. I think it's no secret that over the last 40 years there's been considerable warming in the planetary system and approximately 90% of that warming has gone directly into the oceans. So if you want to go find out what's causing it, that's the place to look. We did look: we defined a fingerprint, if you wish, of ocean warming. Each of the oceans warm differently, different rate to different depths, that constitutes a fingerprint that you can look for. We had several computer simulations, for instance, one for the natural variability, could the climate system just do this on its own? The answer was clearly, no. We looked at the possibility that solar changes and volcanic effects could cause the warming - not a chance.
What just absolutely nailed it was greenhouse warming. Two models, one from here one from England, got the observed warming almost exactly, in fact we were stunned by the degree of similarity between the observations and the models. Well, what does this mean? If you take these results - we got the bulk of the signal, 90% of it – you take these results and combine them with a decade of earlier results, the debate about whether or not there is a global warming signal here now is over - at least for rational people.
The climate system's response to rising greenhouse gasses involves more than just temperature. Earth's water cycle - that's kind of the hydrologic engine that moves fresh water around the planet's surfaces, various phases, ice, liquid water, and water vapour - that water cycle is changing; precipitation patterns are shifting as well. There's large scale drying that's taking place in the temperate zones, especially in the northern hemisphere and it's causing, as Tim just said, severe drought conditions in places like the western United States.
That extra precipitation is instead going to the higher latitudes of both hemispheres. Ice is in decline everywhere on the planet and it's especially apparent in the Arctic.
This melting of the land glaciers combined with ocean warming is causing sea levels to rise and there's a whole lot of extra fresh water that's being dumped into the high latitude, the northern North Atlantic Ocean from the Arctic and this has the potential to interrupt the ocean circulation and to change the way that the ocean transports heat from the low latitudes to the high latitudes. This has the potential to trigger other impacts in the climate system.
The present situation (in the Arctic) is different than it was in the past. It stores enough fresh water to raise sea level by about 7 metres. It's now beginning to lose mass balance: that's new, that wasn't taking place a decade or two decades ago. Its summer melt area is increasing: fresh water's percolating down to the base of the glaciers and lubricating the base and its ice shelves are becoming unstable. All of these things are potential mechanisms to create a sudden release of fresh water into the critical areas, the areas that are critical to the conveyor. So that's probably the wild card in the system, what could actually cause the conveyor to shut down.
The ice in the Arctic is diminishing fast; the trends in eco system productivity recorded in things like the baleen of the Bowhead whale show a similar downward trend over the last 50 years indicating that the loss of ice has been reflected in a similar reduction in productivity of the food web. Now in the Arctic ice is important in a lot of ways, in terms of animals the ice contains algae that photosynthesise about half of the primary productivity of ice covered seas comes from the ice algae - those are gone, the ice is gone.
Scripps Researchers Find Clear Evidence of Human-Produced Warming in World's Oceans:
Scientists at Scripps Institution of Oceanography at the University of California, San Diego, and their colleagues have produced the first clear evidence of human-produced warming in the world's oceans, a finding they say removes much of the uncertainty associated with debates about global warming.
Originally posted by Saf85
SNIP as no evidence
Originally posted by Solomons
I thought scientists said the pole would melt this summer? oh they were wrong? well shock horror...who wudda thunk it...