"GLOBAL WARMING" = FAKE:..... Sea Ice Ends Year at Same Level as 1979

Originally Posted by SuperAntigen

I told myself i was going to stay out of this thread but this is too much...
roll.gif
roll.gif
roll.gif


All I am reading is AL GORE this, Boo Liberal that, Conservative Yes...
roll.gif
roll.gif
roll.gif


None of y'all have provided any relevant evidence that actually refutes "Global Warming"...like comon. If you wanted to start a Liberal bashing thread, you should've done that instead of starting this thread and showing just how naive you are about global processes with respect to the changing climates.
one of global warming's biggest premises included the continued expansion of emerging market and american carbon consumption. we were consuming at such ridiculous rates because our economies were growing at unprecedented rates. it was all artificial growth financed by low interest rates and malinvestment. countries like china and brazil are NOT going to be expanding their consumption, rather they will be CONTRACTING it bigtime. global warming is a scam.

roll.gif
roll.gif
roll.gif
roll.gif


Really...stop playing...

look at the dramatic rise in sea ice levels in the same months as the market crash.
 
Originally Posted by Dey Know Yayo

Originally Posted by SuperAntigen

I told myself i was going to stay out of this thread but this is too much...
roll.gif
roll.gif
roll.gif


All I am reading is AL GORE this, Boo Liberal that, Conservative Yes...
roll.gif
roll.gif
roll.gif


None of y'all have provided any relevant evidence that actually refutes "Global Warming"...like comon. If you wanted to start a Liberal bashing thread, you should've done that instead of starting this thread and showing just how naive you are about global processes with respect to the changing climates.
one of global warming's biggest premises included the continued expansion of emerging market and american carbon consumption. we were consuming at such ridiculous rates because our economies were growing at unprecedented rates. it was all artificial growth financed by low interest rates and malinvestment. countries like china and brazil are NOT going to be expanding their consumption, rather they will be CONTRACTING it bigtime. global warming is a scam.

roll.gif
roll.gif
roll.gif
roll.gif


Really...stop playing...
look at the dramatic rise in sea ice levels in the same months as the market crash.


laugh.gif
laugh.gif
...Ok Yayo, I know you and I have gone back and forth in the Gold Thread quite afew times in the recent past-- but believe me when I say that I fully respect what you do and have actually learned a few things from your posts. Me"pestering" you with questions was just my way of extracting the info. I needed from you.

But please listen to me when I say you have no idea what you're talking about. Sure, your ability to predict market fluctuations from reading charts andfrom technical analysis is clearly unparalleled on this forum (in my opinion) but, do not assume those very same talents make you proficient in the discourseof climate change with respect to global warming. I can easily point out flaws in you OG post to prove this.

laugh.gif
...
 
the ice caps may be the same as they were in 79 but that doesn't mean global warming doesn't exist. global warming is caused by greenhouse gases likeC02. so even if the ice caps dont melt off it wont matter because C02 is bad for us and other animals.
 
humans are not goign to be consuming at the same rate as we were in the past two decades. that in itself makes me bearish on global warming.
 
I've always been skeptical on "global warming" but I am 100% behind a lot of measures meant to reduce emissions. Global warming or not, pollutionis never a good thing.
 
Originally Posted by NeptuneBeats187

I am Global Warming, and so are you.

Seriously.
Reminded me of that SP episode where "Cartmen and Stan break the beaver damn and flood some town (sim to NO)

roll.gif
 
You have to keep peoples interest in saving the Earth consistent. So it's in your mind "protect the Earth!!" "protect the Earth!!" Butyou will always have those people who just dont give a.
 
A static mean global ice level is not representative of the health of Earth's glaciers.

While the Antarctic Sheet and Greenland have the capacity to experience upswings in ice levels, such as this, the most immediate consequences of rising globaltemperatures affect tropical and mountain glaciers.

Extremely sensitive glaciers in the mountains of North America, the Congo in Africa, New Guinea in Indonesia, and in the Cordillera Blanca, part of the Andesmountains in Peru, have exhibited the most pronounced and direct evidence of glacial melt caused by rising global temperatures.

The IPCC has presented qualitative evidence linking rising global temperatures and the rapid loss of glaciers in the tropical and mountainous regions.

http://www.grida.no/climate/ipcc_tar/wg1/064.htmhttp://www.grida.no/climate/ipcc_tar/wg1/064.htm

Glacial retreat in these regions poses serious threats to water resources for many communities that range from indigenous Peruvians to Coastal Californiansdependent on local glaciers for water.

The scientific community is making it extremely clear Earth's glaciers are in decline. As temperatures have risen more rapidly, even the vast expanses ofice in the Antarctic and Greenland are experiencing melt of outlying glaciers.

Larsen_B_Collapse.jpg

This image is of the collapsing Larsen B ice shelf in Antarctica, which had reduced in area by 40% between 1995 and 2002. Because of its connection to inlandglaciers, further melting of Larsen B is expected to accelerate decline of the Antarctic sheet and contribute greatly to global sea level rise.

NASA article on consequences of the breakup of Larsen B: http://nasadaacs.eos.nasa.gov/articles/2007/2007_larsen.htmlhttp://nasadaacs.eos.nasa...les/2007/2007_larsen.html

326wilkins550x507.jpg

Collapse of the Wilkins Ice Shelf, Antarctica in 2008.

Link to more on Wilkins Ice Sheet and consequences of its disintegration: http://www.esa.int/esaCP/SEM2U5THKHF_index_0.htmlhttp://www.esa.int/esaCP/SEM2U5THKHF_index_0.html

Global glacial melt is accelerating at a calamitous rate. Rising sea levels, habitat loss, human displacement, coral bleaching, drought, famine, biodiversitycollapse, and extreme weather are only the foreseeable consequences of glacial melt. Continuing our program of denial and inaction will not be forgiven byfuture generations.
 
so you don't think the carbon released into the air from the burning of fossil fuels has any affect on the rising of global temperatures? are republicansreally that delusional?
 
Lol at someone saying global warming being fake and saying we will not live in a water world.

If it got that bad there would be no population because everyone would drown.

Also 1 article does not deem something fake or real, so the premise that just 1 article proves it is fake is ridiculous just tone it down TBone your at a 10you need to be at a 2. Also I have not seen any other facts to prove Global Warming is an absolute lie. check the top scientists and see what they say,overwhelming majority say we are causing climate changes that are fatally dangerous but no one knows how progressive.

Do I think global warming is a tad overstated. Yes. Is it fake? You are crazy. You got to be out of your mind to think that global warming is fake.

And no the media is NOT liberal because if it was they would have checked G.W. before Katrina and after. The country may be more center left than center rightbut the media is by no means liberal. MSNBC is liberal but hey you can fact check them compared to Fox News and see who is less over the top and more factbased. Also at least MSNBC can admit they are left unlike Faux says they are middle of the road.

Also what's with the Gore discrediting he did technically win the 2000 election, as did Al Fraken in the senate..
 
[h1]More polar bears going hungry[/h1]

Warmer temperatures and earlier melting of sea ice are causing polar bears to go hungry (Image: B&C Alexander/Arcticphoto.com)
WARMER temperatures and earlier melting of sea ice are causing polar bears to go hungry. The number of undernourished bears has tripled in a 20-yearperiod.

The changes in sea ice are affecting the hunting opportunities available. Polar bears are in serious trouble

Seth Cherry of the University of Alberta, Canada, and colleagues monitored the health of polar bears in the ice-covered Beaufort Sea region of the Arcticduring April and May in 1985, 1986, 2005 and 2006. They immobilised the bears using tranquilliser darts and measured the ratio of urea to creatinine in theirblood. A low ratio means that nitrogenous waste material is being recycled within the body and indicates the animal is fasting - a state which usually onlyoccurs temporarily in males during the spring breeding season.

In 1985 and 1986 the proportion of bears fasting was 9.6 and 10.5 per cent respectively. By 2005 and 2006 this had risen to 21.4 and 29.3 per cent(Polar Biology, DOI: 10.1007/s00300-008-0530-0).

Cherry's team believes that the increase in fasting bears is explained by warmer temperatures and earlier spring melts. Polar bears use sea ice as ahunting platform, catching seals by sitting next to their breathing holes and waiting to pounce. Spring is usually a time of feasting for polar bears, fillingup before summer when the ice retreats. "It is clear that the changes in the sea ice are affecting the hunting opportunities available to the bears,"says co-author Andrew Derocher of the University of Alberta.

What's more, the early melting may also be resulting in a lack of prey. Sea ice is important to seals because they build dens for their pups in theoverlying snow, explains Cherry, so their numbers may have dropped.

Anecdotal evidence backs up the team's conclusions, with many more sightings of polar bears swimming inopen water and resorting to eating other food, such as fish. Previous work has also indicated that melting ice is driving pregnant polar bears onto land to build their birthingdens.

"If the ice continues to contract, which seems inevitable, polar bears will become even more nutritionally disadvantaged. The study proves polar bearsare in serious trouble," says Rick Steiner, a marine conservationist at the University of Alaska in Anchorage.

_____________________
[h1]Greenland meltwater will take slow wave around globe[/h1]Pacific nations threatened with disappearing beneath the waves as sea levels rise have been given a partial reprieve - for a few decades at least. ButEurope and North America could be at much greater risk of floods than previously appreciated. So claims the first systematic analysis of what will happen tothe water from melting Greenland ice.

In the past five years, research has suggested that sea levels could rise by more than a metre in the coming century, as rising temperatures causeGreenland's ice to slide into the oceans and melt. This would be enough to entirely engulf coral-island nations like Kiribati and Tuvalu.

But now Detlef Stammer of Hamburg University, Germany, says that most ofthe melted water will stay in the Atlantic for at least 50 years, where sea levels will rise much faster as a result. Only small amounts will make it into thePacific Ocean in that time.
[h3]Slow wave[/h3]
"It is often assumed that sea levels will rise instantaneously, but that is unlikely, given what we know about ocean dynamics," says Stammer."The Greenland ice cap is much less of a threat to tropical islands in the Pacific than it is for the coasts of North America and Europe."

Stammer plugged data about the amounts of meltwater released from the Greenland ice sheet since 1948 into a computer model. This then calculated how thatwater spread around the oceans over 50 years.

He shows that meltwater forms a "wave" of rising sea levels that gradually works its way south from Greenland, down the American coast, reachingthe tip of southern Africa after about a decade.

After that, it slowly spills east through the Indian Ocean. According to Stammer, the "additional" water only reaches the Pacific after about 30years.
[h3]US at risk[/h3]
Fifty years after the meltwater is released from Greenland, Stammer's model predicts, sea-level rise could be 30 times greater around Greenland and downthe eastern side of North America, including the Gulf of Mexico, than in the Pacific Ocean.

Meanwhile, sea-level rises in Europe are around six times that of the Pacific, but only a fifth as great as on the opposite shore of the Atlantic.

This does not mean that the Pacific Islands or other low-lying areas like Bangladesh in the Indian Ocean, are safe. The thermal expansion of water as aresult of global warming is already causing waters to rise around the world. But the delay does buy these vulnerable nations some time.

Stammer's model indicates that meltwater from Antarctica's ice sheets would spread more slowly still. The strong currents in the Southern Oceancould prevent substantial sea-level rise from reaching much of the world for centuries. He found that after 50 years, rises from Antarctic meltwater in thenorthern Atlantic and Pacific would be "barely measurable".

Journal reference: Journal of Geophysical Research (DOI:10.1029/2006JC004079)

_____________________________

caseimage_brae.jpg


19 December, 2008
[h1]Increased melt[/h1]

Most of the melting has occured in Greenland
More than 2 trillion tons of land ice in Greenland, Antarctica and Alaska have meltedsince 2003, according to new NASA satellite data that show the latest signs of what scientists say is global warming, reported Newsminer.com Tuesday.
Newsminer quotes the NASA geophysicist Scott Luthcke as saying that more than half of the loss of terrestial ice in the past five years has occurred inGreenland, based on measurements of ice weight by NASA's GRACE satellite, and the Greenland melt seems to be accelerating.

The news was better for Alaska. After a precipitous drop in 2005, land ice increased slightly in 2008 because of large winter snowfalls, Luthcke said. Since2003, when the NASA satellite started taking measurements, Alaska has lost 400 billion tons of land ice.

In assessing climate change, scientists generally look at several years to determine the overall trend.

Melting of land ice, unlike sea ice, increases sea levels very slightly. In the 1990s, Greenland didn't add to world sea level rise; now that island isadding about half a millimeter of sea level rise a year, NASA ice scientist Jay Zwally said in a telephone interview from the conference.

Between Greenland, Antarctica and Alaska, melting land ice has raised global sea levels about one-fifth of an inch in the past five years, Luthcke said. Sealevels also rise as a result water expanding as it warms.

______________________

[h1]Changes 'amplify Arctic warming'[/h1]

[table][tr][td]
By Jonathan Amos
Science reporter, BBC News
[/td] [/tr][/table]
999999.gif

[table][tr][td]
_45147629_ice226bbc.jpg

Open water should result in warmer air temperatures in Autumn
[/td] [/tr][/table]
Scientists say they now have unambiguous evidence that the warming in the Arctic is accelerating.

Computer models have long predicted that decreasing sea ice should amplify temperature changes in the northern polar region.

Julienne Stroeve, from the US National Snow and Ice Data Center, told a meeting of the American Geophysical Union that this process was under way.

Arctic ice cover in summer has seen rapid retreat in recent years.

The minimum extents reached in 2007 and 2008 were the smallest recorded in the satellite age.

"The sea ice is entering a new state where the ice cover has become so thin that no matter what happens during the summer in terms of temperature orcirculation patterns, you're still going to have very low ice conditions," she told the meeting.

Autumn return

Theory predicts that as ice is lost in the Arctic, more of the ocean's surface will be exposed to solar radiation and will warm up.

When the autumn comes and the Sun goes down on the Arctic, that warmth should be released back into the atmosphere, delaying the fall in airtemperatures.

Ultimately, this feedback process should result in Arctic temperatures rising faster than the global mean.

Dr Stroeve and colleagues have now analysed Arctic autumn (September, October, November) air temperatures for the period 2004-2008 and compared them to thelong term average (1979 to 2008).

The results, they believe, are evidence of the predicted amplification effect.

"You see this large warming over the Arctic ocean of around 3C in these last four years compared to the long-term mean," explained Dr Stroeve.

"You see some smaller areas where you have temperature warming of maybe 5C; and this warming is directly located over those areas where we've lostall the ice."

Wider changes

If this process continues, it will extend the melting season for Arctic ice, delaying the onset of winter freezing and weakening further the wholesystem.

These warming effects are not just restricted to the ocean, Dr Stroeve said. Circulation patterns could then move the warmth over land areas, she added.

"The Arctic is really the air conditioner of the Northern Hemisphere, and as you lose that sea ice you change that air conditioner; and the rest of thesystem has to respond.

"You start affecting the temperature gradient between the Arctic and equator which affects atmospheric patterns and precipitation patterns.

"Exactly how this is going to play out, we really don't know yet. Our research is in its infancy."

The study reported by Dr Stroeve will be published in the journal Cryosphere shortly.

_45146192_ice_extent_466.gif

Arctic sea ice is currently being lost even faster than the models predict

Jonathan.Amos-INTERNET@bbc.co.uk


_____________________

[h1]Arctic becomes an island as ice melts[/h1]




By Auslan Cramb
Last Updated: 11:27PM GMT 10 Nov 2008

Comments 111 | Comment on this article

Arctic-becomes-an-island-as-ice-melts.html

Global warming has caused the Arctic icecap to retreat from neigbouring continents creating opening a gap

The North Pole has become an island for the first time in human history as climate change has made it possible to circumnavigate the Arctic ice cap.

The historic development was revealed by satellite images taken last week showing that both the north-west and north-east passages have been opened by melting ice.

Prof Mark Serreze, a sea ice specialist at the National Snow and Ice Data Centre (NSIDC) in the US said the images suggested the Arctic may have entered a "death spiral" caused by global warming.

Shipping companies are already planning to exploit the first simultaneous opening of the routes since the beginning of the last Ice Age 125,000 years ago. The Beluga Group in Germany says it will send the first ship through the north-east passage, around Russia, next year, cutting 4,000 miles off the voyage from Germany to Japan.

Meanwhile, Stephen Harper, Canada's Prime Minister, has announced that ships entering the north-west passage should first report to his government. The routes have previously opened at different times, with the western route opening last year, and the eastern route opening in 2005.

The satellite images gathered by Nasa show that the north-west passage opened last weekend and the final blockage on the east side of the ice cap, an area of sea ice stretching to Siberia, dissolved a few days later.

Last year the extent of sea ice in the Arctic reached a record low that could be surpassed in the next few weeks, with some scientists warning that the ice cap could soon vanish altogether during summer.

Four weeks ago tourists had to be evacuated from a park on Baffin Island because of flooding caused by melting glaciers, and polar bears have been spotted off Alaska trying to swim hundreds of miles to the retreating ice cap.

Measurements on August 26 showed an ice cap of just over two million square miles, confirming the second biggest ice cap melt since records began. New of the opening of the passages emerged as the British explorer and adventurer Lewis Gordon Pugh began a kayak expedition to the North Pole aimed at drawing attention to the dramatic impact of melting polar ice.

"I want to bring home to world leaders, on this expedition, the reality of what is now happening here in the Arctic," said the 38-year-old environmentalist in his blog.

"The rate of change is clearly faster than nearly all the models predict, which has huge implications for climate change and how to tackle it."

Meanwhile Prof James Lovelock, of the University of Oxford, has claimed "planet-scale engineering of the climate" may have to be attempted to counter global warming.
_____________________________________

[h1]Arctic is melting even in winter[/h1][h2]The polar icecap is retreating and thinning at a record rate[/h2]
/multimedia/archive/00342/polarbear385_342960a.jpg

Jonathan Leake

The Arctic icecap is now shrinking at record rates in the winter as well as summer, adding to evidence of disastrous melting near the North Pole, according to research by British scientists.

They have found that the widely reported summer shrinkage, which this year resulted in the opening of the Northwest Passage, is continuing in the winter months with the thickness of sea ice decreasing by a record 19% last winter.

Usually the Arctic icecap recedes in summer and then grows back in winter. These findings suggest the period in which the ice renews itself has become much shorter.

Dr Katharine Giles, who led the study and is based at the Centre for Polar Observation and Modelling at University College London (UCL), said the thickness of Arctic sea ice had shown a slow downward trend during the previous five winters but then accelerated.

[h3]Related Links[/h3]


She said: "After the summer 2007 record melting, the thickness of the winter ice also nose-dived. What is concerning is that sea ice is not just receding but it is also thinning."

The cause of the thinning is, however, potentially even more alarming. Giles found that the winter air temperatures in 2007 were cold enough that they could not have been the cause.

This suggests some other, longer-term change, such as a rise in water temperature or a change in ocean circulation that has brought warmer water under the ice.

If confirmed, this could mean that the Arctic is likely to melt much faster than had been thought. Some researchers say that the summer icecap could vanish within a decade.

The research, reported in Geophysical Research Letters, showed that last winter the average thickness of sea ice over the whole Arctic was 26cm (10%) less than the average thickness of the previous five winters.

However, sea ice in the western Arctic lost about 49cm of thickness. This region saw the Northwest Passage become ice-free and open to shipping for the first time in 30 years during the summer of 2007.

The UCL researchers used satellites to measure sea-ice thickness from 2002 to 2008. Winter sea ice in the Arctic is about 8ft thick on average.

The team is the first to measure ice thickness throughout the winter, from October to March, over more than half of the Arctic, using the European Space Agency's Envisat satellite.

Giles's findings confirm the more detailed work of Peter Wadhams, professor of ocean physics at Cambridge University, who has undertaken six voyages under the icecap in Royal Navy nuclear submarines since 1976 and has gathered data from six more voyages.

The vessels use an upward-looking echo-sounder to measure the thickness of sea ice above the vessel. The data gathered can then be compared with previous years to find changes in thickness.

Wadhams published his first paper in 1990, showing that the Arctic ice had grown 15% thinner between 1976 and 1987.

In March 2007 he went under the Arctic again in HMS Tireless and found that the winter ice had been thinning even more quickly; it was now 50% of the 1976 thickness.

"This enormous ice retreat in the last two summers is the culmination of a thinning process that has been going on for decades, and now the ice is just collapsing," Wadhams said.

The scale of the ice loss has also been shown by other satellite-based observations that are used to measure the area of the Arctic icecap as it grows and shrinks with the seasons.

In winter it normally reaches about 5.8m square miles before receding to about 2.7m square miles in summer.

In 2007, however, the sun shone for many more days than normal, raising water temperatures to 4.3C above the average. By September the Arctic icecap had lost an extra 1.1m square miles, equivalent to more than 12 times the area of Britain.

That reduced the area of summer ice to 1.6m square miles, 43% smaller than it was in 1979, when satellite observations began.

At the heart of the melting in the Arctic is a simple piece of science. Ice is white, so most of the sunlight hitting it is reflected back into space. When it melts, however, it leaves open ocean, which, being darker, absorbs light and so gets warmer. This helps to melt more ice. It also makes it harder for ice to form again in winter. The process accelerates until there is no more ice to melt.

Wadhams said: "This is one of the most serious problems the world has ever faced."

_________________________________________

[h1]Arctic ice thickness 'plummets'[/h1]

[table][tr][td]
By Mark Kinver
Science and environment reporter, BBC News
[/td] [/tr][/table]
999999.gif

[table][tr][td]
_45147629_ice226bbc.jpg

The data proves that overall volume of sea ice is decreasing, say researchers
[/td] [/tr][/table]
The thickness of Arctic sea ice "plummeted" last winter, thinning by as much as one-fifth in some regions, satellite data has revealed.

A study by UK researchers showed that the ice thickness had been fairly constant for the previous five winters.

The team from University College London added that the results provided the first definitive proof that the overall volume of Arctic ice was decreasing.

The findings have been published in the journal Geophysical Research Letters.

"The ice thickness was fairly constant for the five winters before this, but it plummeted in the winter after the 2007 minimum," lead author Katharine Giles told BBC News.
[table][tr][td]
o.gif
[/td] [td]
start_quote_rb.gif
I think this is the first time that we can definitively say that the bulk overall volume of ice has decreased
end_quote_rb.gif


Dr Seymour Laxon
University College London
[/td] [/tr][/table]
Sea ice in the Arctic shrank to its smallest size on record in September 2007, when it extended across an area of just 4.13 million sq km (1.59 million sq miles), beating the previous record low of 5.32 million sq km, measured in 2005.

The team from the university's Centre for Polar Observation and Modelling - part of the UK's National Centre for Earth Observation - found that last winter the ice had thinned by an average of 10% (26cm/0.9ft) below the 2002-2008 winter average.

Dr Giles added that the data also showed the western Arctic experienced the greatest impact, where the ice thinned by up to 19% (49cm/1.6ft).

Melting point

The recent record losses of ice cover in the Arctic has led to suggestions that the region could have reached a "tipping point" but some uncertainty over the causes had remained, explained co-author Seymour Laxon.

"The extent can change because the ice can be redistributed, increasing the amount of open water," he told BBC News. "But this does not reduce the overall amount of ice."
[table][tr][td]
o.gif
[/td] [td]
_45147583_-2.jpg


inline_dashed_line.gif


'Green eye' tech centre launched
[/td] [/tr][/table]
"To determine whether the reduction in sea ice extent is the result of ice being piled up against the coast or whether it is the result of melting, you need to measure the thickness."

"I think this is the first time that we can definitively say that the bulk overall volume of ice has decreased," observed Dr Laxon.

"So this means melting; it doesn't mean that the ice has just been pushed up against the coastline."

Dr Giles explained that the measurements gathered by satellite provided a continuous data-set and had a number of advantages over other methods.

"Drilling, submarines or aircraft; all of these techniques can be limited by time and space," she said.

"You can only sample relatively small areas, and you cannot have a continuous time series - it's a very harsh environment, so field experiments in winter are logistically difficult."

"We have been using satellite data, which means we get coverage all across the Arctic Ocean (apart from the very centre) and we get it continuously, so we have great coverage both in terms of time and area."

The measurements were recorded via a radar altimeter onboard the European Space Agency's (Esa) Envisat satellite.

The altimeter fires pulses of electromagnetic waves down on to the ice, which reflects them back up to a receiver on the satellite.

The time taken for the waves to complete this journey is recorded, and it is a fairly straightforward calculation to work out the height of the ice above sea level.

As one tenth of the ice sits above the water, it is then possible to work out the overall volume and thickness of ice in that location.

Dr Laxon said the project's findings are being used to help climate modellers refine their projections of what is going to happen in the future.

"The time when Arctic sea ice is going to disappear is open to a lot of debate," he said.

"About five years ago, the average projection for the sea ice disappearing was about 2080.

"But the ice minimums, and this evidence of melting, suggests that we should favour the models that suggest the sea ice will disappear by 2030-2040, but there is still a lot of uncertainty."
The researchers hope to keep the data series, funded by the EU and the Natural Environmental Research Council (Nerc), running for as long as satellite-based measurements are available

___________________________

[h3]Satellite Data Reveals Extreme Summer Snowmelt in Arctic[/h3]
The northern part of the Greenland ice sheet experienced extreme snowmelt during the summer of 2008, with large portions of the area subject to record melting days, according to Dr. Marco Tedesco, Assistant Professor of Earth & Atmospheric Sciences at The City College of New York (CCNY), and colleagues. Tedesco explains to The Daily Galaxy that he doesn't know for certain if this rapid snowmelt suggests that global warming might be happening faster than predicted? "At this stage of the analysis it is not possible to draw any conclusion in this regard," he noted. Professor Tedesco and his colleagues are currently analyzing possible causes for the high snowmelt in northern Greenland.� High surface temperatures are, so far, the most evident factor.� However other factors, such as solar radiation, could play a role, as well, he noted.

The team discovered the rapid snowmelt based on an analysis of microwave brightness temperature recorded by the Special Sensor Microwave Imager (SSM/I) onboard the F13 satellite. Tedesco told The Daily Galaxy that he does not know what animal species may be affected by this extreme melting, since that is not his field of work, but from a climate perspective he finds the melting to be unusual.

"Having such extreme melting so far north, where it is usually colder than the southern regions is extremely interesting," Professor Tedesco said.� "In 2007, the record occurred in southern Greenland, mostly at high elevation areas where in 2008 extreme snowmelt occurred along the northern coast."

Tedesco says that the runoff is 88 percent higher than the 1979 - 2007 mean. In addition, analysis of ground measurements from World Meteorological Organization automatic weather stations located close to where the record snowmelt was observed indicate surface/air maximum temperatures up to 3° Celsius above average.

Melting in northern Greenland lasted up to 18 days longer than previous maximum values.� The melting index, i.e. the number of melting days times the area subject to melting) was three times greater than the 1979-2007 average, with 1.545•106 square kilometers x days.�

The snowmelt and temperature anomalies occurred near Ellesmere Island, where several ice shelf break-ups were observed this summer.� The region where the record melting days were recorded includes the Petermann glacier, which lost 29 square kilometers in July.

"The consistency of satellite, model and ground-based results provides a basis for a more robust analysis and synthesis tool," Professor Tedesco added.� Next June, he and his colleagues plan to conduct field work in northern Greenland to further study the phenomenon.
 
global warming is very real..... whether or not it is a natural phenomenon and not the apocalyptic event that society has made it out to be, well that'swhat is in question.
 
Originally Posted by ReliantJ

Originally Posted by corwinator3407

Global warming has been a bunch of garbage from the beginning. Liberals and their media FTL.
Media hasn't been liberal for years
......... im gonna go ahead and assume you're being sarcastic.
 
Originally Posted by AddictedToFreshKicks

Originally Posted by Worlds Enemy

Hmmm. Well can you really say that global warming is nonexistent just because the ice level is the same as 79?
umm... yes
no you cant becuase compare this to a graph of company stocks. they might drop and have rebounds then drop again, or even experience a head andshoulders formation but htat doesnt mean anythign. you have to look at the bigger picture. Look at a graph of the ice since it started getting recorded and ifyou see the same trend, your point will be greatly more credible.

Still if we were able to look at several thousand years of data, that point might be proven invalid.

The only way to gain accuracy is to increase the time span over which the assumption is made, not 29 years
 
Originally Posted by KingLouisXIV

A static mean global ice level is not representative of the health of Earth's glaciers.

While the Antarctic Sheet and Greenland have the capacity to experience upswings in ice levels, such as this, the most immediate consequences of rising global temperatures affect tropical and mountain glaciers.

Extremely sensitive glaciers in the mountains of North America, the Congo in Africa, New Guinea in Indonesia, and in the Cordillera Blanca, part of the Andes mountains in Peru, have exhibited the most pronounced and direct evidence of glacial melt caused by rising global temperatures.

The IPCC has presented qualitative evidence linking rising global temperatures and the rapid loss of glaciers in the tropical and mountainous regions.

http://www.grida.no/climate/ipcc_tar/wg1/064.htmhttp://www.grida.no/climate/ipcc_tar/wg1/064.htmhttp://www.grida.no/climate/ipcc_tar/wg1/064.htm

Glacial retreat in these regions poses serious threats to water resources for many communities that range from indigenous Peruvians to Coastal Californians dependent on local glaciers for water.

The scientific community is making it extremely clear Earth's glaciers are in decline. As temperatures have risen more rapidly, even the vast expanses of ice in the Antarctic and Greenland are experiencing melt of outlying glaciers.

Larsen_B_Collapse.jpg

This image is of the collapsing Larsen B ice shelf in Antarctica, which had reduced in area by 40% between 1995 and 2002. Because of its connection to inland glaciers, further melting of Larsen B is expected to accelerate decline of the Antarctic sheet and contribute greatly to global sea level rise.

NASA article on consequences of the breakup of Larsen B: http://nasadaacs.eos.nasa.gov/articles/2007/2007_larsen.htmlhttp://nasadaacs.eos.nasa.gov/articles/2007/2007_larsen.htmlhttp://nasadaacs.eos.nasa...les/2007/2007_larsen.html

326wilkins550x507.jpg

Collapse of the Wilkins Ice Shelf, Antarctica in 2008.

Link to more on Wilkins Ice Sheet and consequences of its disintegration: http://www.esa.int/esaCP/SEM2U5THKHF_index_0.htmlhttp://www.esa.int/esaCP/SEM2U5THKHF_index_0.htmlhttp://www.esa.int/esaCP/SEM2U5THKHF_index_0.html

Global glacial melt is accelerating at a calamitous rate. Rising sea levels, habitat loss, human displacement, coral bleaching, drought, famine, biodiversity collapse, and extreme weather are only the foreseeable consequences of glacial melt. Continuing our program of denial and inaction will not be forgiven by future generations.
Always with the info...
pimp.gif
 
global warming is very real..... whether or not it is a natural phenomenon and not the apocalyptic event that society has made it out to be, well that's what is in question.
There it is. It doesn't seem like polluting the air could be a good thing, but I also think things are overstated. I just want the market tobring "green" technology to the masses, not huge, wasteful government spending
 
Back
Top Bottom