Arctic Ice Possibly to Vanish
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New Study Proposes Ice-Free Arctic Summers
In a new study recently completed, the United Kingdom based Catlin Arctic Survey proposes that we soon may be experiencing ice-free summers in the Arctic regions. The study was compiled by both Catlin and the World Wildlife Foundation, and adds to research that suggests an Arctic ice melt could completely eliminate the ice pack at certain times of the year.
The expected culprit is global climate change, which numerous scientists claim will cause major changes in the world's climates, cooling in some regions, heating in others, over an unspecificed but possibly immediate time frame.
This study is not the first that suggests ice-free summers in the Arctic, and like others, has used data gathered over several decades as well as expeditions to the Arctic to measure how deep and how solid the ice currently is.
The teams, headed by UK explorer Pen Hadow, worked at the Beaufort Sea, manually drilling into the ice to see how old the ice there was. They discovered mostly new ice, as opposed to what they expected to find, much older ice. They explored a 450 kilometer route and reported that traditionally this area was covered in much older ice. "Discovering this area of younger ice provides another body of information that supports the rapidly emerging scientific consensus that it's going to be nearer 10 years from now that we see roughly 80-85 percent free waters in the Arctic Ocean," Hadow reported to CNN.
Professor Peter Wadhams, head of the Polar Ocean Physics Group at Cambridge University in England added, "With a large part of the region now in first year ice, it's clearly more vulnerable. The area is now more likely to become open water each summer, bringing forward the potential date when the summer sea ice will be completely gone."
Wadhams expects the Arctic to be ice-free in summer within 20 years at most. Previous research has also brought up the dangers of water ocean waters world-wide, indicating that cooler sea waters hold more CO2 than do warmer waters. The oceans hold a significant part of the CO2 in solution, and releases of this greenhouse gas, when added to other sources of greenhouse gasses, may do much harm to an already delicate system.
Some researchers also wonder if the frozen methane on the sea floor might also melt and come to the surface, entering the atmosphere in large quantities. Methane is considered a much more potent greenhouse gas than is CO2, and significant additions may further exacerbate an already growing problem. Since no one knows where a tipping point exists, most speculation is based upon current data, which is being expanded every year, but which makes creating exact and accurate models more difficult.
Added to this, there are some who believe these changes to be entirely natural, and that this entire issue a lot of noise about nothing. Be that as it may, if indeed greenhouse gasses, natural or man-made, will be affecting our climatic future, nations around the world would be wise to prepare for possibly drastic changes in their own climate. And as stated by many who study this global climate change effect, changes will not be the same in every part of the globe. Some areas will experience cooling while others heat up, causing yet more confusion about the causes and effects.
No matter what the reason, any major loss of Arctic ice will affect the climate of the world because the ice mass has a major role in the entire Earth's climate control. If sea ice is taken out of the equation, the equilibrium of climate will change from what we know today. Also, large amounts of cold fresh water may also change ocean currents such as those which keep England and the British Isles and Ireland temperate most of the year round.
While no one expects sudden changes such as those portrayed by Hollywood, such changes over time may be just as deadly.
- Arctic Ice Melting Quickly - Science News - redOrbit
Scientists continue to keep a close eye on the Arctic Ocean, which has given up tens of thousands of square miles of ice this summer. - Arctic Sea Ice News & Analysis
Year-round analysis of Arctic sea ice conditions, together with daily sea ice images and additional information. - NRDC: Global Warming Puts the Arctic on Thin Ice
Answers to questions including: What kinds of changes are taking place in the Arctic now? Will Arctic ice melt have any effects beyond the polar region? Can we do anything to stop global warming?
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Comments
Thanks, i scribble, I used to teach students who had to leave their home in the Marshall Islands because of encroaching seas. The Pacific Ocean had swallowed up about half their island, which was never more than about 6 feet above sea level. Now it wasn't erosion, it was the acutal sea level rising. The beach is still there beneath the water, i't's just UNDER water now! Rocks were still in place and houses which were yards from the beach were now starting to be waterlogged. The floors were wet and about an inch of salt water sat on them. The island wasn't sinking, it was just being inundated. And there are still some who deny global climate changes!
Again, thanks for the comment! I think we, you and I, share this concern even in times of so many other problems!
Cheers!
Chef Jeff
I'm happy to see the torch is still being carried Chef. I'm just afraid that it's too late to prevent some very catastrophic global changes.
As usual, we've procrastinated instead of acting. For the sake of short-term profit for a few, the future will be a nightmare for billions.
As a matter of actual fact, if global climate change is not addressed urgently and immediately, all other problems will be eclipsed by the resultant catastrophic impacts upon economies, food, water, energy and habitable land mass.
I see you have addressed the methane question in this hub. This is something that isn't often mentioned but is of paramount importance.
The land beneath the disappearing ice you speak of has billions of tons of ancient biomass locked in deep-freeze as methane. If the land is exposed to sunlight for prolonged periods, the methane, twenty times more potent than CO2, will be released.
The methane, once released into the atmosphere, will speed the warming process which will in turn release more greenhouse gasses and on we go.
This is a feedback loop and the results of such loops being started are largely unknown but, conservatively speaking, potentially disastrous. They will more than likely shorten the time frame for the maximum impact of climate change by several orders of magnitude.
Despite all the negative impact this may bring us, we need to be open to changes. There is basically nothing we can do about it, I think.
BestsMe, yes, we will need to be ready for any changes this brings. I suppose that is what bothers me when people deny climate change. It's as if they are afraid to admit that something is going on and focus only on how it is not mankind's fault.
There may be no fault, or there may indeed be fault, but if we have reached a tipping point, no matter the reason, we had better get ready for whatever this thing throws at us.
Thanks for the comment!
Cheers, and pass the ice cubes...
Chef Jeff
Today I read the news that a large iceberg is heading for Australia, a remnant of the huge chunk that broke off from Antarctica. We will watch and see if this adds more evidence to global climate change ideas. I rather suspect it does.







i scribble says:
2 months ago
Excellent hub. The whole issue of global warming is currently being drowned out by the multitude of other pressing political issues. But we need aggressive legislative action on this one probably more than any other. Antarctica is also melting away and island nations are being reclaimed by the sea. I guess New York City, southern Florida, or California will have to disappear under the sea before people really sit up and take notice.