239 comments on DrumBeat: October 12, 2007
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239 comments on DrumBeat: October 12, 2007
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GAIA Host Collective
Congratulations to Al Gore on the Nobel Peace Prize. Let's hope this encourages people to take the matter more seriously.
P.S. Long time lurker, first time poster. Thanks to everyone at TOD for the top class intelligent analysis and news. You people have changed my life.
Perfect timing to note that today the arctic sea ice anomaly hit a new record in excess of 2.5 Million square kilometres, although how much in excess is not clear, as the line falls off the graphs...
http://arctic.atmos.uiuc.edu/cryosphere/IMAGES/current.365.jpg
http://arctic.atmos.uiuc.edu/cryosphere/IMAGES/sea.ice.anomaly.timeserie...
This will be the second time in 2 months they have to rescale the y-axis (sea ice anomoly) to include the most recent data. Nonlinearity is the name of the game.
Yeah, check out these scary pictures:
October 12th 2005
http://arctic.atmos.uiuc.edu/cryosphere/IMAGES/ARCHIVE/20051012.jpg
October 12th, 2006
http://arctic.atmos.uiuc.edu/cryosphere/IMAGES/ARCHIVE/20061012.jpg
October 12th 2007
http://arctic.atmos.uiuc.edu/cryosphere/IMAGES/ARCHIVE/20071012.jpg
Already the critics are complaining that climate change has nothing to do with peace. Good grief, have they been living in a cave? Even the Pentagon is warning that climate change will fuel warfare and unrest.
There's nothing wrong with climate change as a topic linked to peace. For those who don't get that one yet, just wait a few years more. But Gore and the IPCC are the exact wrong bodies to award it to. It's one-on-one the same as giving Kissinger the prize in 1973.
The IPCC has by now sufficiently been proven to be a hopelessly backward, always-late and inadequate panel. When 2000 scientists have to reach consensus on every single word published, that is no surprise, All that sort of organization requires is a handful of industry stoogies, and they'll never get anything right. It was set up that way for precisely that purpose: to be a huge failure. And that's the only part of it that actually works.
Gore waxes incessantly about the growth opportunities offered by climate change, if only we all get "green jobs". The 180 off-the-mark message, either utterly clueless or intentionally misleading. No, we cannot keep this economy rolling and save the planet's climate and ecosystem at the same time.
And, really, this was the message:
"This live coverage of Live Earth was brought to you by Chevy".
If that's not clear enough, we have nothing left to talk about.
Gore is as wrong as the IPCC is, and both are the completely and gloriously wrong parties to hand this award to for global warming. They fail in every sense there is. And hereby, so does the Nobel committee. And whatever still might have been done to prevent the worst outcomes, fades ever further into the distance, receding beyond horizons. It's not as if there were no other candidates with a connection to the subject. There are activists like Sheila Watt-Cloutier, and there are scientists like James Hansen.
The one word that truly fits the occassion is perverse.
It's amazing Hansen was passed over for the prize.
Giving Hansen the prize would have been my choice for this years prize, as the theme seems to be AGW, but that's not the way the system works. The peace prize is a tool for the nobel comittee to highlight something they feel is important, and that is in some way related to peace. Last year it was microcredit and economic development among the extremely poor, before that nuclear proliferation.
This year it's global warming. I have not seen Gore's movie, but a lot of people have. Gore is very famous, and the comittee decided that awarding the prize to him would get the most bang for the buck when it comes to publicity. The fact that he is just an ordinary politician and that the IPCC seems to be always hopelessly outdated doesn't matter, because most people doesn't know that.
Personally I believe Norway should give the prize back to sweden, the reason we got to hand it out in the first place was that Norway hadn't started a war in modern times, and it probably seemed like a nice gesture towards the Swe-Nor union's "little brother". After Norway went to war in Iraq and Afghanistan I don't see how we can credibly hand out this prize.
Well, it is only fitting that the prize is awarded by the wrong people to the wrong people. That is an excellent way to make sure the wrong message is delivered.
Fortunately, I'm not the only one who sees the perversity.
Sharon Astyk wrote this morning:
I think you misjudge him. I have evolved (devolved?) to a realist (i.e. doomer) point of view, as I do not see any "solution" that would result in making our present lives and lifestyles viable again. But painting a picture of what I think is coming our way would never work, even though I really believe it is true. The fact is that with regard to climate change, the trigger has already been pulled, and the changes are already locked in for the remainder of my natural life, and that of my children as well. But we could still help change things for the longer range, and that is worth while.
To my thinking, the discussion should really be moving to mitigation strategies, as opposed to prevention, but even there I see many problems that appear to be unsolvable. Nonetheless, how can we possibly move to a discussion of mitigation, when people still deny the possibility of anything happening? Gore's efforts are targeted at the mainstream center, and I think they are well targeted too. Al Gore is clearly a bright man, and he has been thinking about these issues for a very long time. He has access to all of this information, and I think the odds that he might fail to understand the implications are slim. But he could not possibly come out and show the more dire situation reflected by reality to the masses. The blowback would destroy the message and the messenger, and nothing would be accomplished.
So what can he accomplish? I do not know, but somehow I cannot help but feel it is right to let people know the truth, even if you don't believe they'll do anything useful with it, and even if there isn't anything useful they can do with it. And the masses will need to have their truth dispensed in small doses before they are receptive to the whole picture.
Where have we been fighting? Oh, Somalia, under great stress due to climate change, and Afghanistan, facing the same?
There is a very strong correlation between climate change that affects humans and humans affecting those around them. Any assertion to the contrary is purely Faux Noise style stupidity in motion ...
I seem to recall a Pentagon report which predicted global climate change in the future, where "Once again, warfare would define human life."
http://www.commondreams.org/headlines04/0222-01.htm
Oh, and there's this:
Gore climate film's 'nine errors'
This is one of them:
I don't really blame the judge; the science is moving so fast in this area. But 20' is looking like it's way conservative.
Can we have that judge stand down on the beach and litigate the tide away?
Like that medieval king, whatsisname...
| The problem will solve itself.
| But not in a nice way.
Canute
Have you read The nine alleged errors in the film?
This judge's ancestor filled the Ozzie Penal Colony with
people stealing loaves of bread.
Exact same mentality.
1-He agreed that if Greenland melted it would release this amount of water - "but only after, and over, millennia"
1a-IPCC says Arctic to be ice free by 2013.
2-Pacific atolls "are being inundated because of anthropogenic global warming" but the judge ruled there was 2a-Leader of imperiled Maldives issues stark warning on sea level rise.
www.iht.com/articles/2007/02/04/news/maldives.php - 45k
3-the judge said that it was "very unlikely" that the Ocean Conveyor, also known as the Meridional Overturning Circulation, would shut down in the future, though it might slow down.
3a-"very unlikely" is a legal term?
4-The judge said that, although there was general scientific agreement that there was a connection, "the two graphs do not establish what Mr Gore asserts".
4a-proof that the judge is into obfuscation.
And on and on. Grasping at straws the Old Guard
slowly dies off.
Arkansaw of Samuel L Clemens
I assume he was just repeating what the scientist witnesses told him.
I don't know how it works in the UK, but in the US, the whole "expert witness" thing is nauseating. A lot of the "experts" don't know much about anything, except how to get lawyers to pay them big bucks to say whatever will help their case. And the judges and juries don't know enough to tell who's the more reliable "expert."
Heck, juries are chosen for their ignorance. I was once rejected for jury duty, on the grounds that I was an engineer. What's wrong with being an engineer? They were afraid I would rely on my own expertise, rather than accept the expert witnesses' testimony unquestioningly. (And they had very good reason to fear that. ;-)
I assume he was just repeating what the scientist witnesses told him.
(Because I can refute the 9 "errors" off the top of my head.)
Then the judge is being bought off by BP.
But I curse this judge and the Media for equating this
verdict with proof of being alarmist.
But we move on as does Mother Earth.
Non Linear is now the order of the day.
From PO, to Tipping Point in Climate, to Peak Grain,
to Peak Population.
The Black Swan floats into view ina ll her glory:
Under the NEB predictions, Canadian gas supplies will shrink to a range between 14.5 bcf/d to 15.8 bcf a day during 2007 to 2009. The flow of natural gas from Western Canada will decline to 13.7 bcf/d, from 16.2 bcf/d during the same period.
Daily output at Mexico's biggest oil field, Cantarell, highlights the problem. Production there dropped by a staggering half a million barrels in the last 18 months, to 1.5-million barrels from 2-million. Once the world's second-biggest oil field, it is expected to continue losing production, down to as little as 600,000 barrels a day by 2013.
http://biz.yahoo.com/ap/071012/crop_report.html?.v=1
USDA: Wheat Stockpiles Shrinking Fast
Friday October 12, 9:21 am ET
U.S. Wheat Stockpiles Poised to Fall to Lowest in 59 Years on Robust Foreign Demand, USDA Says
And the Big Lie continues out of Australia:
Wheat exports lie in WA crops after welcome rain
Geoff Easdown-this guy must be the Judith Miller of Ozzieland-;}
September 25, 2007 12:00am
THE nation's biggest wheat-growing region has been given a much welcome drink after a rain squall passed across a large part of the Western Australian wheatbelt yesterday.
http://www.news.com.au/heraldsun/story/0,21985,22475335-664,00.html
What's really happening:
http://www.thewest.com.au/default.aspx?MenuID=159&ContentID=42146
Drought continues to eat into wheat crop
2nd October 2007, 11:45 WST
Even the banks are praying for rain.
The National Australia Bank today warned of a “desperate” need for rain across much of the nation’s farm lands.
Economist Skye Dixon warned the outlook for the wheat crop, already in great stress, was only getting worse.
Ozzie satellite Infrared:
http://www.bom.gov.au/gms/IDE00005.200710121430.shtml
Not a cloud in the sky. Maybe 7 million tons.
BTW-you're doing great work, Leanan.
Yours,
James
Arkansaw of Samuel L Clemens
Yes, non-linear does indeed seem to be the order of the day.
As I point out (and this just infuriates some people): "The numbers and the laws of physics do not care one wit what you or I think about them or whatever meaning is assigned to them or to the person discussing them.
They simple are and that's really all you need to know."
Yes, I agree about jury duty. I and a friend of mine, on different summons, were also dismissed due to education.
I made the point in the Marie Antoinette thread that just accelerating melting will release increasing amounts of water, steadily flooding coastlines over the next 15 years, yielding steady, ongoing damage.
If massive parts of the ice sheet break apart and suddenly slide off the land into the ocean, we can expect a series of destructive tidal waves, punctuating sudden large rises in sea level, likely killing millions worldwide living near coastlines, leaving tens of millions more suddenly homeless and jobless, leaving businesses large and small in ruin, possibly bankrupting the insurance industry or crushing the economy.
If peak oil doesn't do that first.
Hmmm... what would one well placed suitcase nuke be able to do to the ice shelf? One nuke can destroy a city center and contaminate a wide area but sticking it where it can cause a huge area of ice to crash into the ocean seems like it would exponentionally increase the damage. Terrorists seem to really like methods that leverage into higher degrees of damage.
Of course I could be way off on scale here about the force needed to cause such an event. I just remember a few years ago talk of part of the Canary Islands possibly breaking off and causing a tidal wave that would wipe out the eastcoast of North America.
Hello EngineerAU,
Interesting theory, but a suitcase nuke is not needed. My speculative prediction is that Mother Nature is working just fine with her Climate Change Toolset to collapse most of the Ross Ice Shelf in the next five years or less. The collapse of the Larsen Ice Shelf was just a preview of worse things to come.
Once this floating shelf is gone: the ice in the subsea Bentley Subglacial Trench [basically the size of Mexico] is free to fracture to pieces. Then the whole of the WAIS is free to slip and slide away downhill to the ever-rising sea level.
The downthread link to a graphical tool on sea level is fascinating [my thxs to the poster]. The damage from surface saltwater encroachment will be bad enough on its own, but the tool doesn't show how rising sea levels will turn many aquifers brackish. I posted much earlier on how aquifer depletion in Hermosillo, Mexico combined with porous sedimentary layers extending into the ocean have allowed seawater to migrate miles inland.
IMO, it would be interesting to have some expert hydrologists/geologists evalute our coastlines for subsurface saltwater intrusion. Could the sedimentary layers in the GoM make many freshwater aquifers far inland useless if sea levels rise 5 meters? How about the Colorado River Delta: could the Salton Sea and even Death Valley see saltwater seepage. How far would subsurface seawater migrate into the Saramento Delta? Other areas of aquifer concern: Florida aquifers, Chesapeake Bay, etc.
Bob Shaw in Phx,Az Are Humans Smarter than Yeast?
Excellent thoughts, as always, Bob. Time to get those notepads on desalination ideas again, the ones where power plants can no longer provide sufficient electricity.
Yeah, well, delta G still equals delta H minus T delta S, so it'll take energy, lots of it, to desalinate water, notepad notions notwithstanding.
This would be a very serious problem in FL, Bob. The soil is very porous (measured in feet of water movement per day typically) and we get virtually all of our water from aquifers. Already there has been saltwater intrusion to the point that the Cocoa Beach water treatment plant (which just pumps groundwater) is located a good 30 miles to the west in Orange County.
Actually, did ANYBODY on this site notice that ANTARCTIC sea ice is at an all-time maximum? The collapse of the Southern ice shelfs will take a bit longer I suppose...
Is there a reason you provide no proof for this statement?
Because anybody actually reading CRYOSPHERE TODAY would see it. Go to Cryosphere Today, http://arctic.atmos.uiuc.edu/cryosphere/
(the same site with the off-the-charts graph of Arctic sea ice mentioned upthread)and scroll down through the announcements until you get to
UPDATE: Monday, October 1, 2007 - Record SH sea ice maximum and NH sea ice minimum
Just when you thought this season's cryosphere couldn't be more strange .... The Southern Hemisphere sea ice area narrowly surpassed the previous historic maximum of 16.03 million sq. km to 16.17 million sq. km. The observed sea ice record in the Southern Hemisphere (1979-present) is not as long as the Northern Hemisphere. Prior to the satellite era, direct observations of the SH sea ice edge were sporadic.
therefore, in the Arctic: high temperature =>sea ice and glaciers melt
in the Antarctic: low temperature => lots of sea ice, little melting of glaciers, West Antarctic will not "collapse" any time soon
Conclusion: total melt until 2100 will be more than people thought a few years ago, but less than the prophets of doom predict (Alpha Male Prophet of Doom was actually the name of one of the posters a few months ago)
Sea ice is made from water already in the sea.
The concern is regarding ice from land (the ice sheet, vs the sea ice) melting into the sea.
The Greenland Ice Sheet, when it melts, will contribute roughly 7m to the ocean levels.
The Antarctic Ice Sheet, if it melted, would contribute 70 meters to ocean levels.
So a 20 to 25 foot rise from the Greenland Ice Sheet is probably the minimum we can expect.
Best thoughts and actions for preventing the need to deal with a 200 foot increase in sea level.
Yes. It's been discussed at length here.
Yes, the Antarctic ice shelf has been discussed here.
The item with which you are concerned is of extremely little importance at the current time. We will need years of repeated maximums setting a clear trend before this year means anything by itself for Antacrtica. And frankly, I do not expect those repeated maximums to ever occur at this point in time. On the other hand, the Arctic low was so much lower than normal (approximately 22% lower) that it clearly is of concern which is why there is so much interest in it.
"The greatest shortcoming of the human race is our inability to understand the exponential function." -- Dr. Albert Bartlett
Into the Grey Zone
Thanks for the explanation, Grey.
They certainly have not read that the large melt of sea ice is not CO2 related either.
http://www.jpl.nasa.gov/news/news.cfm?release=2007-112
SNIP:
"The scientists observed less perennial ice cover in March 2007 than ever before, with the thick ice confined to the Arctic Ocean north of Canada. Consequently, the Arctic Ocean was dominated by thinner seasonal ice that melts faster. This ice is more easily compressed and responds more quickly to being pushed out of the Arctic by winds. Those thinner seasonal ice conditions facilitated the ice loss, leading to this year's record low amount of total Arctic sea ice.
Nghiem said the rapid decline in winter perennial ice the past two years was caused by unusual winds. "Unusual atmospheric conditions set up wind patterns that compressed the sea ice, loaded it into the Transpolar Drift Stream and then sped its flow out of the Arctic," he said. When that sea ice reached lower latitudes, it rapidly melted in the warmer waters.
"The winds causing this trend in ice reduction were set up by an unusual pattern of atmospheric pressure that began at the beginning of this century," Nghiem said."
END SNIP
Note it said "winter perrenial ice". So Greyzone, why are you arguing that the WINTER permanent ice in the Antarctic is not a valid comparison. By what method are you deciding that. Winter ice in the Arctic is gone, and winter ice in the Antarctic is growing. Why are you trying to discount winter ice as a non valid comparison.
I guess the better question, is why didn't you know about this study. Or has JPL/NASA now been bought off too. And you try and call me a conspiracy theorist. Pot kettle, as they say, ehh.
eh, perhaps you might actually look at the link in GZ's post, referring to melting in the antarctic. It too was done by S. Nghiem from JPL.
Regarding your recent JPL news blurb, far be it for me to speak for GZ, but it has NOTHING TO DO WITH ANTARCTICA.
Other than that your comments are incoherent.
Foot mouth, as they say, ehh?
PS - Try replying to the correct post.
if YOU actual read his post and it would be clear that he was replying to biologist not GZ.
If you check out http://nsidc.org/news/press/2007_seaiceminimum/20070810_index.html
you can see the winds an animation of the wind described by S. Nghiem in the NASA press release in Fig 4 of the 26 September 2007 post and the ice flowing out of the Arctic basin past Greenland can be seen in the animation in Fig 4 of the 22 August 2007 post.
I don't suppose that one might consider that the wind currents which are said to have pushed the sea-ice thru the Fram Strait might also be changed due to AGW. Naa, that would be too obvious. However, there has been some suggestion that the so-called Pacific Decadal Oscillation (PDO) may have flipped into the cold phase. Since everything is coupled, it becomes really difficult to sort thru the chain of cause and effect.
Last winter, there was an apparent change in the THC in the Greenland Sea as seen in the sea-ice data, perhaps an indication of an overall slowdown. I would look for more unusual weather this winter, especially so if there are no more tropical storms entering the Gulf of Mexico before the end of the hurricane season. All that warm water in the Gulf acts like a fully charged battery, which will dump it's energy in some direction under the right conditions. If that isn't overhead, as a tropical storm, then I think the resulting winter storms and precipitation later in the may be a shock.
As for the Antarctic, remember the Ozone Hole? Ozone is a greenhouse gas and there being less of late, the result should be colder conditions. All that cold air flows off the Antarctic continent over the ocean, which freezes. More cold air would result in more sea-ice at the end of the freeze season.
E. Swanson
I am not so sure about this whole tidal wave business in connection with tidewater glaciers.
When something that big moves horizontally it moves very fast in terms of geological time, but not that fast. I think rapid ice sheet slide is something like kilometers per day rather than kilometers per year, and probably not the many multiple kilometers per hour needed to generate a tsunami.
Calving events can and do create fairly impressive waves in constrained spaces but the energy isn't there for an ocean spanning slosh - they're impressive, but local events. The Lituya Bay tsunami is of this type, but it began at the head of the fjord, with the high sides and constrained spaces making it more impressive than had the collapsing face been directly on the sea. This was not an ice event but rather unstable rock, the similarity is found in the scope of the event.
Someone references the La Palma volcano collapse - this definitely the hand of $DEITY slapping the surface of the Atlantic, should that come to pass, but the events are totally different. When La Palma lets go it'll be similar to the event at Lituya Bay in Alaksa in that its rock, and on a much larger scale, but the physics are just not the same.
A La Palma eruption will drop a massive amount of volcanic rock from a pretty good height essentially instantaneously - E = 1/2 M * V^2. A tidewater glacier is basically a long tube of ice on an inclined plane - so we're talking about the kinetic coefficient of friction between this flexible ice mass and its fjord. Ice is brittle on a small scale and brittle when not under pressure, so the sheet won't simply slide into the sea wholesale, it'll break up as it exits the fjord the glacier has carved. The calving events may produce impressive local waves but they'll be just that; local events.
As further proof I'll offer that there are many studies regarding the effects of ice dams failing and large glacial lakes draining on land as well as current photos of glacial dams blocking fjords with locally impressive results, but I've never seen any suggestion that ocean spanning tsunamis would result from rapid ice sheet draining other than here on TOD.
I would welcome proof that this is possible, as many have seen that televised special about the Lituya Bay and La Palma tsunamis, and being able to connect the Greenland sheet draining to that simple, visual reference point might get folks moving who are currently sitting on their hands. I just don't think an ice sheet draining is an ocean sized tsunami producing event.
We didn't anticipate the moulins, either, to be perforating the interior of the ice sheet, resulting in the now-nonlinear melt.
What happens to trees when they are infested with termites? Can parts of an infrastructure-compromised tree suddenly collapse and fall off?
The idea is definitely possible.
But, you are right, and I did make the same statement. If we are talking about meltwater drainage, then no, no sudden, punctuated damage. Just a long, huge bleed.
Even if its a large mass of ice coming out fairly quickly I don't think glaciers move with enough speed to cause a large scale tsunami. The events would be limited to the maximum size of the bits calving off the front of the glacier.
We keep coming back to this whole collapse thing, but glacier lay horizontally on the land, they don't stand up like trees or mountains. What governs a glacier's movement is the angle of the grade and the kinetic coefficient of friction between the ice mass and the fjord. Glaciers are also plastic - ice is brittle on human scales, but an ice cube the size of a fjord flows like a piece of tar on a hot day.
I have been looking since this topic came up and it would appear that with the exception of discussions on TOD no one, no matter how alarmist, thinks we'll get a La Palma style event out of any glacial/ice sheet activity. The reported hazards are almost all to do with melt water lakes - lakes forming in places and then bursting, or glaciers closing off waterways and the level behind the glacier rising. Fast movement for a large glacier or ice sheet happen over seasons, not in a single instant.
If I'm not mistaken this whole idea of massive parts of either Greenland or Antarctica ice sheets (excepting the Ross Ice Shelf) sliding off the land into the ocean is impossible because they are in fact so heavy that the land mass they sit on is depressed -- in some instances below sea level!
Here's is one quick google link about Greenland describing this fact: http://www.greatestplaces.org/notes/g_land.htm
"The bedrock beneath the ice is an eastern extension of the Canadian Shield, the expanse of ancient granite rock that makes up much of Canada's vast interior lowland plain. The surface of the bedrock is far from even. In some places it lies below sea level, while elsewhere it rises up to form high mountain ranges. (The highest peak in Greenland, Mount Gunnbjorn in the eastern coastal range, reaches 12,139 feet.) In overall contours the land surface beneath the ice is more or less saucer-shaped, with a central depression bordered by mountain ranges."
The same is true of Antarctica which I read about many years ago. A little common sense and readily available geologic knowledge here should dispell once and for all this wild notion.
However, of greater concern would be the affect of weight loss displacement upon the tectonic plate system across the globe. I fully expect that more and likely greater events of earthquakes and volcanism will result from all this ice sheet loss as the tectonic system adjusts to the changing pressure from this land loss of ice.
God only knows when this may be evident, but like everything else happening in this ice sheet meltdown regard, we'll find out sooner than later.
I'm not so sure the 'saucer-shaped' contours would keep all the ice in place, but it's an interesting factoid, thanks.
I do think it's interesting to think about isostatic rebound, which this suggests doing. Basically, any land which has had a shitload of ice on it has sunk into the mantle. If the ice were to slide or melt off, the land would rise. Not immediately, but perhaps not all that slowly either. In addition to earthquakes and possibly a bit of volcanism associated with such, I winder if it might not contribute a little to sealevel rise.
Surely there are many geologists on here with more recent degrees than mine. Any thoughts on Greenland isostasy to round out that particular scenario?
thanks and good night.
You guys kill me. A little quality time with Google and Google Earth yielded this:
If you open the photo page you'll find a small "note" in the upper left showing the location of Jakobshavn Isbrae, the place where 10% of Greenland's ice drainage happens. Its a long, narrow fjord that used to have a floating ice tongue, but that all collapsed over the last few years, leaving the glacier directly interfacing with the sea.

The complete failure of the Greenland ice cap would add 7m to global sea levels. There isn't going to be any giant tsunami when it all slides into the ocean. Ice is plastic on a large scale and brittle on smaller scales when faced with sudden changes - the ice makes its way to the ocean, then breaks away in chunks not much wider than the total height of the face of the glacier producing them. The ice will drain, perhaps rapidly in the scheme of things, leaving a layer that lacks the oomph to reach the ocean, and that will melt in place.
The land rebound happens in geological time frames even if the ice drains very quickly. Rock flows, too, but not nearly so quickly as ice. We're 10,000 years past the Wisconsin glaciation and Canada is still rebounding at 1cm/year.
SCT,
I agree that the notion of giant tsunami from ice sheet melting is not at all probable and stated as much with one simple to grasp but good reason why. So I'm uncertain as to who you are referring to with your "You guys kill me" remark. I think in this instance you're barking up the wrong tree.
But if you suppose that all this rapid Greenland ice melt will not also result in an increase in earthquake and volcanic activity (without claiming that it'll happen like tomorrow, but will be felt sooner than later across the globe) I do respectfully submit that you kill me too.
;-)
Careful what you wish for. Why the snarky reply to my post? I'm not writing about tsunamis, I posted on isostatic rebound & sea-level rise.
I requested someone who was more on top of facts and got you? See, this is the core problem of internet dating.
Yes, I know theres a circa-1 cm isostatic rise in the wake of the previous glaciation, my geology degree isn't THAT frikkin' old.
You, however, seem to be taking the position that losing ice cover semi-gradually 10,000 years ago is analagous to abruptly losing a lot in a few decades. Is there an adult at home I can talk to?
In the meanwhile, I did a quick google and found a bunch of stuff about tectonic activity from isostatic rebound, for instance:
http://online.wsj.com/public/article/SB114981650181275742-JP4d_PhuEWtBLy...
The ice sheet is getting swiss-cheesed and will eventually lose the internal structure needed to support its own weight.
Like termites in a tree, or osteoporosis in the bone (osteo meaning bone, porosis as in porous, as in having many holes), both of which, under the "normal" stresses of simply trying to maintain internal stability, will cause parts of the tree or bone will abruptly break, snap off, or otherwise collapse under their own weight when the structure is compromised.
The Greenland Ice Sheet will eventually break or collapse because of moulins compromising the internal structure. Whether it will fall or slide into the ocean after collapse is still an interesting question to investigate.
Please. It's only an "interesting question to investigate" for someone who refuses to understand and accept that it isn't going to happen as you keep supposing it might.
Simply stated this swiss-cheesed and softened "ice sheet" would have to "slide" up and over all the Greenland coastal mountains. It just ain't gonna happen.
Or maybe just between the mountains, as SCT suggested.
Between the mountains is how glacial tongues of the ice sheets flow into the ocean, and which are now in retreat. Even expecting that a flowing tongue portion of any larger ice sheet will suddenly let go and slide off into the ocean at once is just not likely as they quickly fracture into slices and the land surfaces are not at all smooth.
Certainly calving faces of these glacial tongues create waves, as I've witnessed first hand in Alaska, but the notion of a massive tongue letting go, sliding into the ocean to create a massive tsunami on the scale as orginally posited is IMHO near impossible.
Is it at all possible? Anything is if you want to imagine it so, but I'd rather worry about those things we know are possible and are happening now. This isn't one of them.
Godraz has it - ice sheet size, geometry, grade on which it lays, and friction with the underlying earth determine how fast it moves ... we have a serious problem with the Greenland ice sheet, but it isn't going to generate The Day After Tomorrow sized dramatic events that'll attract the attention of the MSM.
Sorry, I thought we were still talking about Al Gore and sea level rise.
If you noticed the quotation marks around 'error' then you are more observant than all of the journalists I listed above. Burton is not saying that there are errors, he is just referring to the things that Downes alleged were errors. Burton puts quote marks around 'error' 17 more times in his judgement. Notice also the emphasised part -- Burton is not even trying to decide whether they are errors or not. This too seems to have escaped the journalists' attention. (And yes, that was Bob Carter mentioned there.)
So what is Burton assessing in his judgement? Well, s407 says that where political issues are involved there should be "a balanced presentation of opposing views" so Burton states that the government should make it clear when "there is a view to the contrary, i.e. (at least) the mainstream view". Burton calls these "errors or departures from the mainstream".
So contrary to all the reporters' claims Burton did not find that there were 9 scientific errors in AIT, but that there were nine points that might be errors or where differing views should be presented for balance.
http://scienceblogs.com/deltoid/2007/10/an_error_is_not_the_same_thing.php
Yes, we should blame the judge.
If you have an large block of ice and a pool of water, and you melt the ice and drop the melted ice into the pool, how long does it take to raise the level of the pool?
The time it takes is dependent on the flow rate of water into the pool. Drop the water in all at once, the pool rises nearly instantaneously.
If the ice melts completely in 15 years, the water levels will rise during that time frame.
The judge cannot actually be this stupid.
20' is conservative. 20m - 35m is more like it.
As noted by Leanan, others, and myself, sea level rise only requires Greenland ice to displace ('slide') into the ocean. It won't matter how long it takes to melt to those living below 18 ft above the current sea level.
And that's exactly what's going to/what is happening:
The ice cap, located in Greenland, is melting four times more rapidly than at the beginning of the decade according to the study. Glaciers in southeastern Greenland release icebergs into the sea, corresponding to a giant ice cube measuring 6.5 kilometres (4 miles) per side.
The researchers measured ice melt with ultra-sensitive Global Positioning Systems (GPS) stations located in the mountains and along the ice cap.
The measurements indicated that the mountains hugging glaciers in the southeastern part of Greenland rose four to five centimetres (1.5 to two inches) per year, and that the banks of the glaciers thinned 100 metres per year.
The Greenland ice cap measures 1.7 million square kilometres (656,000 square miles) and is 3.2 kilometres (two miles) thick.
http://news.yahoo.com/s/afp/20071011/sc_afp/climatewarminggreenland_0710...
Arkansaw of Samuel L Clemens
To quote a little more from the article linked above:
Anyone know just how many asserts, heck large portions of major cities, as well as population, there are between 0 - 18 ft above the current sea level?
Firetree lets you plug in your own sea level rise, and see how it would affect anywhere on Google Earth.
Here's the US with sea levels 5m (18 ft) higher. (You can zoom in closer if you want.)
Thanks - great functionality. I know this was posted yesterday but using it now. WARNING - it's fairly approximate. For near coastal sites where I know the elevation, this map underestimates the area that will become part of the seafloor.
That said, every refinery and nuke plant and a number of coal and gas fired power plants in my state would be underwater.
Leanan,
Do you know of similar maps that would cover other areas of the world--like Saudi Arabia for example?
Que? All you need to do to look at SA is to zoom out and use the hand tool to center on the ME. At 14m rise Qatar is almost an island, and much more of KSA production is offshore. Or will receive involuntary water cuts.
My Doomer friend will be pleased to know he'll have beachfront property. I notice that 1m rise is enough to swamp parts Portland International Airport (PDX) - wonder what's in store for La Guardia and others?
YS - the map Leanan linked to covers the world. In SA, many coastal oil/gas facilities would be surrounded/under water, not to mention a fraction of homes/businesses.
At the risk of burning up more server space, here are the qualifications about the maps, where any highlighting is mine (click "ABOUT' on webpage to get this):
There are a number of significant sources of inaccuracy. All of these inaccuracies are optimistic - correcting the inaccuracy would make the consequences of sea level rise look worse. I’ve made a conscious effort to avoid ad hoc corrections for these effects. If these maps have a purpose, it is to encourage the general public to consider the consequences of global warming. If I were to make corrections that make more bits of the map shaded blue, then I would run the risk of having the whole thing discredited as alarmist.
Firstly, the model knows nothing about the tides. Since tidal variation can be 10m or more in some parts of the world, this is a major deficiency.
Secondly, the NASA data itself is not very accurate. Jonathon Stott has said that “NASA claims their height data is accurate to +/- 16m with 90% certainty”. NASA gathered the data by radar from orbit, so buildings and trees cause a systematic overestimation of the elevation of built-up and forested areas.
Thirdly, the NASA data does not extend beyond +/-60 degrees latitude. Its accuracy becomes degraded at the extremes of its range, especially in the Southern hemisphere, I am told.
Fourthly, the simulation takes no account of the effects of coastal erosion. I believe that anywhere within a metre or so of daily maximum sea level would be swiftly eroded. So areas which my model shows as future ‘coastline’ would almost certainly be quickly eroded away.
Fifthly, I don’t take any account of coastal defences. It’s obviously possible to build defences that protect habitable land far below sea level. I’ve got no way of knowing whether current defences (in Holland, say) are able to withstand an extra +1 metre of mean sea level. I imagine that the impact would depend upon how quickly the oceans rise, and how much money was available for building new defences.
Finally, there are areas of the world far from the oceans that are far below sea level. These areas are shown as flooded on my map, where clearly they are not in danger. The area North of the Caspian Sea is the most striking example.
A perfect time for geo-engineering. Just cover the ice with solar powered refrigeration units.
We are so screwed.
As noted by Leanan, others, and myself, sea level rise only requires Greenland ice to displace ('slide') into the ocean.
"Eureka" as Archimedes said when he learned that fact.
I am a strong believer in assigning credit and acknowledging precedence, so forgive my oversight. Please amend to:
As first noted by Archemedes, and recently applied to the Greenland Ice mass by Leanan and others,...
"Yes, we should blame the judge."
I've always heard that ignorance is no excuse, especially with respect to the law. I think failing to learn and think clearly really is cause for blame. Anyone who has seen the effects of ignorance through history surely knows it's inexcusable.
Mark Folsom
You have some AEI muppet on MSNBC right now blathering on about how scientists secretly in their heart of hearts believe that we either don't have a direct influence on it or at least we can do nothing about it....
....the PTB already moving away from not happening to - oh well nothing we can do now might as well continue with BAU
--
All these memories will be lost in time
like tears in rain
Leanan, having had "my turn" yesterday I suppose I should be quiet for another few months, but at the risk of becoming a nag here, let me add additional information to one of the themes from my post yesterday. For those who are willing to read the archaeological record , there is evidence that the Medieval warming period extended to the Arctic and if you go to the Archaeological Survey of Canada you can read an abstract of the paper "Thule Eskimo Prehistory along Northwest Hudson's Bay" by Allen P. McCartney that contains the following
Our sites are thought to have been abandoned during the early 13th century as a response to deteriorating climate. The Neo-Atlantic period ended about A. D. 1200 and the Pacific period of colder temperatures and unstable climatic conditions began.
. The Thule came along the coast from Alaska, as the Arctic ice melted.
It did it back then, and the world did not fall apart, it probably won't this time either.
Your conclusion (repeated from your previous thread) that there's little to worry about seems to ignore the fact that Greenland and Canada are not the entire Earth. While things may have been warmer in Europe or Arctic Canada, one must also take note of other situations. There was a very large volcanic eruption which dates at 1259 C.E. and an even larger one dated at 1453. The first event may be the cause of the dislocation noted in your reference as the end of the so-called "climate optimum", which has been repeatedly point to by deniers of AGW. Similarly, the disappearance of the Vikings in Greenland may have happened as a result of the 1453 event, which produced the largest sulfate spike in 4000 years seen in one Antarctic ice core. One can easily think of the trouble the Viking colonists would have faced, if they were hit with anything like "the Year Without Summer" after Tambora in 1816.
From what I've been able to learn about the Greenland Vikings, their status as European colonists meant that they did not try to adapt to the local conditions in Greenland, which were colder than their Norwegian home. Without trade goods, they had no sources for essential items and materials, such as iron for weapons and nails. They also faced a shortage of wood, especially the sort which could be used to build seagoing ships. Iceland was their nearest trading partner and Iceland was struck by the Black Death in 1402, which killed perhaps 1/2 the population. The Black Death may also have migrated to Greenland. The failure of the Greenland Viking colony can be seen in the pollen record found in sediments near their farms, which show a sharp change as the land reverted to more natural flora.
As climate changes, either naturally or as the result of AGW, there are winners and also losers. The Earth won't "fall apart", however, given the present large human population, there may be more losers than winners and the resulting social disruption may result in much danger for civilized humanity. The uncertainty is large and even the latest estimates regarding the speed of change from the IPCC now appear be too optimistic.
E. Swanson
One quibble. The Greenlanders all came from Iceland as far as history knows, not Norway. The Saga of the Greenlanders is on display in Reykjavik.
One theory is that Greenland had no trees of any size, hence no charcoal, no iron and they ran out of imported iron for their scythes to gather hay (Icelandic farmers traditionally spent all summer desperately gathering as much hay as possible to take their sheep through the winter).
It is noteworthy that the Viking village in Newfoundland had a foundry to smelt bog iron.
Alan
I sometimes take a screen shot of CNN's front page, as they're quite the collection of clowns, and today does not disappoint. They manage to get Gore's Nobel Peace Prize to the top of the list, but see the inflammatory abortion link to draw the wingers' eyes? And what kind of a news day would it be without cheapening the fare with some trailer trash custody antics?
The stuff that should have been left to the Weekly World News has been highlighted with italics.
# Al Gore wins Nobel Peace Prize 21 min
# Putin warns U.S. over missile defense 55 min
# Mychal Bell of 'Jena 6' ordered back to jail
# Weapons of missing, dead soldiers found in Iraq 9 min
# Husband in airport death pleads with police (Video)
# Abortion just as common where it's illegal
# Angry Turks ready to cut U.S. ties 44 min
# WSB: Key Atlanta water source running dry
# CNNMoney: Lipsticks test positive for lead
# Music stars: We must still fight nukes 12 min
# Writer suspected of dismembering girlfriend
# Prince Harry death statue draws fire Video
# Britney Spears worried about kids' naps Video
# Snoop Dogg to pick up trash
# Joy ride costs tot, 3, keys to toy hot rod Video
http://www.cnn.com/
Here's a counter weight to the CNN fair.
Top 25 Censored Stories of 2007
http://fwweekly.com/content.asp?article=6325
For an explanation, Try reading
Who Owns The Media
http://la.indymedia.org/news/2003/04/47530.php
Gore on Top of News Stories?
Not so on Fox. You have to scroll down past stories about Anna Nicole, abortion, atheists on the radio and various celebrity features and faces before you get to the Nobel prize story.
I have to disagree about the abortion story being italicized (i.e. only suitable for WWN). I think that a study (as implied by the title, I've not read the article) about the numbers of abortions being the same in states where it's banned is important news about a national issue when there's a strong movement to ban abortion nationwide. It is, however, an argument for a different blog.
Its a lightning rod for wingers. I'd like to see Roe v. Wade overturned, but only because this hinky privacy business isn't the way other western countries have done it, and it creates endless opportunities to "mobilize the base". I'm personally against the procedure and would do as much as possible to make it unnecessary, but in the end it is an individual decision and must be kept legal and thusly safe.
SCT,
My quibble with abortion is that is only a 'woman's right' and the father , whose child it would be also, is not even considered.He's dismissed as meaningless and dribble.
If my wife had ever chosen to abort one of my children I would have left her immediately at that time. Legally I think it should be considered 'joint' as per all the divorce laws concerning 'property'and the clownish lawyers who suck the blood of those who must go thru it.
Even in my state which is 'no fault' divorce the lawyers have techniques to drag it out for months upon months...and suck the blood til dry....I know for I have in the past gone thru it for over three years. The lawyers won as always.
Heres to every last abortionist and divorce lawyer swimming forever in the 'Lake of Fire'.
Actually my last lawyer fees were quite reasonable but they took my wife thru the hoops til every penny she had(color that my earnings) was spent.
Airdale-if you can't play the price, then don't roll the dice
I've often suggested that we need a shotgun and a bow season here to control that pest known as the "family law attorney". Opposable thumbs are the only thing keeping those critters from being hunted to extinction. I'm actually a bit curious to see how that whole "business" works in the world that is coming at us - a woman attaches one of those blood suckers to her husband's business out of spite and instead of a reduced standard of living she'll get no standard of living ... the destruction that goes into demand destruction.
I agree that an abortion while married would be a joint decision or there would be some serious consequences.
Readers interested in offering Al their personal congratulations or in encouraging him to go on to bigger and better things should consider clicking here: http://www.draftgore.com/.
I'll second the congrats to Al Gore, I think he's a pretty decent guy. No he didn't invent the Internet, but he sure helped get the funding for it and for its expansion. He's been big on universal access to it for decades, and a lot of poor/unemployed have access due to his actions.
I think it's the best Peace Prize choice in the last decade, probably decades - Gore's not a warmonger, despot, or Kill Whitey nutball.
Congrats, Al!
It is with a sense of gratiude that those of us whom have worked so long on this subject (and continue to work), that recognition has been given.