Scientists Cut Greenland Ice Loss Estimate By Half
bonch writes "A new study on Greenland's and West Antarctica's rate of ice loss halves the estimate of ice loss. Published in the journal Nature Geoscience, the study takes into account a rebounding of the Earth's crust called glacial isostatic adjustment, a continuing rise of the crust after being smashed under the weight of the Ice Age. 'We have concluded that the Greenland and West Antarctica ice caps are melting at approximately half the speed originally predicted,' said researcher Bert Vermeeersen."
These are some trolling scientists all right. How can they dare question the confirmed facts of AGW?
I am a fish!
Tell them what they want to hear John!
Quick! Change the name!
CLIMATE CHANGE!
Yeaaah! Then we'll be able to claim we're right, even when we're wrong! woo!
This estimate change means climate change has once again been proven wrong! Right? Right?
(Hint: No.)
I think it just means that in reality, science hasn't got all the right answers, all of the time, and science should be treated, as it was always intended, with a grain of salt.
Yay AGW threads!
Scientists are wrong again, just like they were about magnets.
Confucius say, "Find worm in apple - bad. Find half a worm - worse."
The ice caps are increasing. That's because the gulf stream current is slowing down because of global warming!! If the ice caps were melting that would also prove global warming too. When are you going to face up to the facts global warming deniers! Can't you see! Falsifiability is for republicans and oil executives.
Some bright researchers managed to refine a previous model and come up with better and more accurate predictions. You may want to note how, contrary to some "skeptics" beliefs this wasn't suppressed or refused publication or any other such shenanigans. In the word of a famous person "When I'm proven wrong I change my opinion, what do you do ?".
How can there be a "West Antarctica"?
"After ten years of study, we have determined that our prediction of the end of the world within five years may have underestimated the time remaining..."
I assume you mean Bert Vermeersen (http://www.beta-ambassadeursnetwerk.nl/?pid=26&paspoort=135)?
TFA says Greenland is subsiding due to mass moving to North America. I was thinking that due to the melting, the crust would be rising and thus hiding the apparent ice loss.
Very interesting...
If they previously didn't consider the rising of the crust, but now they are considering it, then my logic says that the estimates for melting rate should have increased. Ok, it says in TFA that in some places the ground is actually subsiding, but it seems weird that this would happen in more places than rising of the ground.
all the speculation/lying in the universe does not effect the real time assessments/outcomes. see you on the other side of it?
meanwhile (still hard to believe WE allow all this crap for even 1 day/hour longer); the corepirate nazi illuminati is always hunting that patch of red on almost everyones' neck. if they cannot find yours (greed, fear ego etc...) then you can go starve. that's their (slippery/slimy) 'platform' now. see also: (we came from monkeys but 'they' didn't), &/or; http://en.wikipedia.org/wiki/Antisocial_personality_disorder
never a better time to consult with/trust in our creators. the lights are coming up rapidly all over now. see you there?
greed, fear & ego (in any order) are unprecedented evile's primary weapons. those, along with deception & coercion, helps most of us remain (unwittingly?) dependent on its' life0cidal hired goons' agenda. most of our dwindling resources are being squandered on the 'wars', & continuation of the billionerrors stock markup FraUD/pyramid schemes. nobody ever mentions the real long term costs of those debacles in both life & any notion of prosperity for us, or our children. not to mention the abuse of the consciences of those of us who still have one, & the terminal damage to our atmosphere (see also: manufactured 'weather', hot etc...). see you on the other side of it? the lights are coming up all over now. the fairytail is winding down now. let your conscience be your guide. you can be more helpful than you might have imagined. we now have some choices. meanwhile; don't forget to get a little more oxygen on your brain, & look up in the sky from time to time, starting early in the day. there's lots going on up there.
"The current rate of extinction is around 10 to 100 times the usual background level, and has been elevated above the background level since the Pleistocene. The current extinction rate is more rapid than in any other extinction event in earth history, and 50% of species could be extinct by the end of this century. While the role of humans is unclear in the longer-term extinction pattern, it is clear that factors such as deforestation, habitat destruction, hunting, the introduction of non-native species, pollution and climate change have reduced biodiversity profoundly.' (wiki)
"I think the bottom line is, what kind of a world do you want to leave for your children," Andrew Smith, a professor in the Arizona State University School of Life Sciences, said in a telephone interview. "How impoverished we would be if we lost 25 percent of the world's mammals," said Smith, one of more than 100 co-authors of the report. "Within our lifetime hundreds of species could be lost as a result of our own actions, a frightening sign of what is happening to the ecosystems where they live," added Julia Marton-Lefevre, IUCN director general. "We must now set clear targets for the future to reverse this trend to ensure that our enduring legacy is not to wipe out many of our closest relatives."--
"The wealth of the universe is for me. Every thing is explicable and practical for me .... I am defeated all the time; yet to victory I am born." --emerson
no need to confuse 'religion' with being a spiritual being. our soul purpose here is to care for one another. failing that, we're simply passing through (excess baggage) being distracted/consumed by the guaranteed to fail illusionary trappings of man'kind'. & recently (about 10,000 years ago) it was determined that hoarding & excess by a few, resulted in negative consequences for all.
consult with/trust in your creators. providing more than enough of everything for everyone (without any distracting/spiritdead personal gain motives), whilst badtolling unprecedented evile, using an unlimited supply of newclear power, since/until forever. see you there?
"If my people, which are called by my name, shall humble themselves, and pray, and seek my face, and turn from their wicked ways; then will I hear from heaven, and will forgive their sin, and will heal their land." )one does not need to agree whois in charge to grasp the notion that there may be some assistance available to us(
boeing, boeing, gone.
It is time for the global cooling crowd to make a comeback and breathe some fresh air into the stale old climate debate.
Excuse me, but please get off my Pennisetum Clandestinum, eh!
sponsored by B.P.
OK, so people are trying to argue that this paper supports one view or another in a trivial manner. I don't think it's that simple.
I can't even being to interpret what this means without a lot more reading. I'm not even sure I know all the questions that need to be asked. But here's a couple which occur to me immediately...
1. This is a new method of measuring ice loss, and from what I can tell is rather hard to interpret given the interacting phenomena. There are long established methods which are far simpler - most obviously measuring the speed of ice flow. Does this new paper bring ice loss estimates into line with estimates from traditional methods, or does it contradict the estimates from traditional methods?
2. Even ignoring that question, ice loss contributes to sea level rise, which is also being observed. If less sea level rise can be attributed to ice loss, does that therefore mean that more must be attributed to thermal expansion, thus increasing estimates the rate at which the earth is absorbing and storing energy? (I think the answer to this one is that the ice-loss contribution is minimal and so the change is also minimal, but it needs checking.)
So we're NOT all going to die? To celebrate I'm going out back to burn that pile of old tyres :-)
Happy, happy, joy, joy...
I fucked your mom.
See this is typical climate change stuff..
It says "thousands of indicators" and people think "oh no!" but there are not thousands of indicators at all... It's pretty much all made up, speculation and FUD.
OMG I'm so citing you in my next paper to Nature.
Less fresh water in the North Atlantic means the thermohaline convection effect will be keeping Europe warm and wet for a while longer. In the short term, that's good. In another sense, though, I suspect it's not so good: it's going to take something dramatic to move climate change out of the "we'll worry about that when we don't have anything more important" category.
Lacking <sarcasm> tags,
I no longer believe you, when you say that you would be "pleased" to hear that global warming isn't that big of a deal. If that were true, why are such stories buried and alarmist stories repeated even if based on incorrect data?
About 10 years ago, I also believed in global warming, however I stopped doing so. How is such a thing possible?
1. Climate Change
I had my first doubts about global warming, when they introduced the term climate change“ which the added claim that climate change“ may not just cause warming in some regions, but may actually cause cooling in others. So all of the sudden climate change“ may cause everything: Hot, cold, stormy, dry, wet, etc.
2. The first decade of the 21st century
If the “hockeystick” were correct, we should have experienced a record-breaking hot climate in every year or at least most years between 2000 and 2010, but that just didn't happen. Some people say that 2009 was the hottest year on the record and hotter than 1998, but even if that's true it does not really support the supposed runaway warming-scenario - at all. Now when from the 10 years following 1998 9 have been cooler and one has been warmer, that may show that the climate may be a little warmer than usual (after all 1998 has been the warmest on the record and 2009 may have broken that record), but it points more to a relatively steady climate that may be little bit too hot, but not at all to some runaway climate shift.
3. Alarmism
What also disturbs me a lot is the alarmism. The warm periods, no matter when we talk about humans (medieval warm period, little ice age, etc.) or life in general were always the better periods (where “better” means of course that more life can be sustained by the earth)
So the horror-scenarios don't make that much sense and are blown way out of proportion.
4. The “experts” opinion
It is always said that the “scientific consensus” is clear about global warming. Well, science is not a popularity contest and is also not democratic. The “scientific consensus” also said that therapy and short prison sentences would reduce crime, but crime rates in the US quadrupled in the 1960s. The “scientific consensus” said that big government will reduce poverty, yet the higher the taxes are and the more incentives is given to the poor to have large families, the more poverty there is. And of course the “experts” also worried about “global cooling” in the 1970s.
The experts have a pretty bad track record, especially when it comes to politically sensitive things.
5. Socialism
Socialism has always been marketed as rule by the scientists and experts. Everybody shall lose their “bourgeous” human rights like right to property and freedom of association (freedom of association is racist anyway, right?) and submit to “expert rule” because the experts know it all and know it better than us rednecks. Well, not only have the “experts” been very often wrong, the centralized rule from above by the experts has proven to be a bigger disaster than any global warming scenario. (Yes, you read that correctly.)
Russia has always been a traditional food exporter and was turned into country where millions starve by the “experts”. And famine and widespread starvation has been the hallmark of socialism almost everywhere it has been tried: China, Cambodia, many african countries, etc.
The “experts” seem to be able to turn a fertile country into a desert not only much faster than global warming, but also repeatedly and in the real word (not just in a computer simulation). Warming may force a change of crops and maybe even a reduction in yield (that's a big “may” - far more likely is that it increases yields because warmer was usually better in the past) but there is no land on earth that cannot be utterly ruined by the advice of an “expert”.
When the “experts” want to create
It is time for the global cooling crowd to make a comeback
Pastafarianism holds that global warming is kept in check by the cooling effect of pirates. Yet the mass piracy perpetrated through the original Napster and its progeny (Gnutella, Kazaa, eDonkey, BitTorrent, etc.) has failed to halt global warming.
And: the increased precipitation, snow and rain, is further diluting the surface salinity in the North Atlantic. When it gets low enough, the Gulf Stream stops its current pattern of flowing north evaporating as it goes until it's salty enough to dive to the bottom and return deep. Much change occurs worldwide, but most immediately Europe gets colder and dryer.
That's going to be very hard to ignore, and IMHO will most likely be the turning point in public and policy-making consciousness of climate change. The question is, when?
Lacking <sarcasm> tags,
>This year we are going to see a new record low for arctic sea ice --- surpassing even the dramatic 2007 decline. http://arctic.atmos.uiuc.edu/cryosphere/IMAGES/seaice.recent.arctic.png
Another source, the Arctic News, differs with your conclusion. See link here: http://nsidc.org/data/seaice_index/images/daily_images/N_stddev_timeseries.png and the main site at http://nsidc.org/arcticseaicenews/
It is still bad. This year will be the runner-up, not the new record low for arctic sea ice. Perhaps, as before, the moisture in the arctic air will swirl down and result in a good snow year for the northeast US ski areas.
Having scanned through the mentioned research article a couple of days ago and knowing a bit about this subject, I must say that the article is quite wrong in its summary of the results. First, glacial isostatic adjustment (GIA) is a very well-known but poorly-constrained problem in such estimates. All previous estimates do take into account GIA, but how they take it into account is another matter. Different ways of modelling GIA yields different results.
In fact, if you think about it, not taking into account GIA will imply that we are measuring this uplift as an increase in ice mass, which means that the estimates without correcting for GIA should show less instead of more ice loss. Hence, a contradiction.
What the new article has to offer is a semi-empirical method of modelling GIA. It is certainly insightful and novel, but this does not mean that its estimates are necessarily more accurate than previous numbers. What this research is effectively arguing, though, is that previous analyses have over estimated the effect of GIA.
Nature has a better news article written about it, but it might be behind a paywall: http://www.nature.com/ngeo/journal/v3/n9/full/ngeo946.html.
People not grasping the complexity of our world make me sad
but isn't half of "a lot" still "a lot"? :S
Greenland was once green. It was discovered by Eric the Red who founded a viking colony there. Later on it got cold and covered with ice.
BTW Eric the Red's son, Leif Ericson, went west and discovered America. . He also founded a cattle ranch near Tucson called the High Chaparal. His brother was Cameron Mitchell who went on to command SG1 on its last few missions before the government closed down the stargate program.
The wold population should start declining soon. Most developed countries have declining birth rates. Japan & Russia lead the way. China has it's one child per couple policy. Population growth in North America is due to immigration. I believe this is the same case in Europe. At some point we will hit a population maximum, then start to decline. I think the best marker for the environment is new species vs extinction of old species. If we start seeing a decline in species in non-human area, then I would be worried. Until then, I'd guess that planet would be able to adjust and maintain the dynamic equilibrium. Don't forget that all it would take is one pandemic to wipe out a significant portion of the human population (thanks in part to cheap air travel). Bacteria & viruses adapt, just like we (and our immune) do.
"....and what also melts?"
"Cheese?"
"small stones!"
"toasters!"
"witches"
"That's right! Witches. Now who doesn't like Witches?"
"Water?"
"DUCKS!"
"Jesus?"
"Correct! Jesus hates witches... and what happens when messiah returns?"
"Frogs?"
"Mice?"
"The Destruction of Earth!"
"Very good, the destruction of earth! Now what does the earth do now?"
"Rotates around the sun?"
"Hosts Life?"
"Spins?"
"Yes it spins! Therefore when it is destroyed, it will stop spinning. What is created by spinning?"
"Centrifugal force?"
"large rats?"
"Magnetism!"
"Correct, it creates magnetism, which must cause the destruction of earth due to its stopping by Jesus because he hates witches. Quid Pro Quo."
"Applause!"
The theory IS wrong. I know you want it to be correct. It isn't. We have supposedly been having some kind of catastrophic climate change for quite a while now, yet somehow nothing much has changed at all. Icebergs and frozen things melt in one area, and things freeze in others. In over 30 years of paying attention, I cannot find a shift in temperatures anywhere that is consistent globally, or falling outside of variances.
Nevermind, the original estimates were correct. Somebody bumped the globe and were looking at Iceland this morning.
This estimate change means climate change has once again been proven wrong! Right? Right?
Of course not. But such a major correction shows that we have a long way to go before we REALLY understand climate science well enough to predict anything long term, or say exactly what is causing changes we observe.
It does indicate you should take anything any climate scientist tells you is "absolute truth" with a huge grain of salt.
I mean, you aren't claiming that no other studies on which the theory of global warming is based are without uncovered error at all of at least this magnitude... Right? Right?
Climate science will be a science when they can actually predict something that will happen instead of predicting what has already happened (oh, but with just a few holes in the results that you should ignore). So far they are nowhere close to that state.
"There is more worth loving than we have strength to love." - Brian Jay Stanley
and then we have localized weather. That means some areas get craploads of rain, and some areas get almost none.
Erm, isn't that how it is now? I mean here in the UK we rota of weather like this: rain, rain, cloudy sky, rain, cloudy sky, rain, cloudy sky and rain, rain and very occasionally when the gods look upon us.... sunshine! As opposed to our EU friends in places like Spain who have Scorchio weather ... Bueno estente !!!
Those sensors made old temperatures look warmer then they really were. Old temperature data had to be adjusted downwards to compensate, making modern readings higher by comparison.
(Yes, they've moved them...and these days they measure temperatures via satellite, not manually-read thermometers)
No sig today...
Future generations won't have SUVs no matter what happens with AGW.
Why not start making the move away from them before we guzzle the last drops of one of our most precious resources in the most stupid way possible (ie. burn it and turn it into greenhouse gas just so you can commute to work in a truck).
No sig today...
I bet hairyfeet is such a ding-dong that he doesn't even see the irony in his choice of anecdote.
ah, well, gotta learn terraforming somehwere...
You can take that theory of electricity with a grain of salt when you stick a metal fork in an outlet,
Yeah, right.
It will get warmer.
Then, it will get colder.
Repeat.
My Theory is infallible.
When Fascism comes to America, it will call itself Anti-Fascism, and tell you to give up your guns.
You people out there who don't believe in AGM are idiots. We keep telling you that the earth is warming, and it's all your fault. But you just keep on living and driving cars, both of which must end immediately. We, of coarse, will keep living and driving our cars, but that's because we have to be around to tell you how bad you are. Ignore the fact that our predictions are wrong, just take our word for it that the earth is warming, it's all your fault, and kill yourself and everyone else, except us. kthxbye
http://www.cbsnews.com/8301-31727_162-20015596-10391695.html
which they clearly have in spades . they need to go back to school .
Deleted
Really, I'm feeling better.
No brain, no pain.
This is something anyone on Slashdot should be able to do. First, go get the GISP2 ice core data at
ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/gisp2/isotopes/gisp2_temp_accum_alley2000.txt
Pull the data into Excel or R or your favourite tool and plot the most recent 10,000 years (period since the end of the last ice age). You'll find it easier to interpret if you convert the age to years AD and BC and normalize the temperatures to make them relative to current.
You'll see that the Mann Hockey Stick is right where it's supposed to be. What's surprising is how tiny it is (said the actress to the bishop).
What I find most interesting is that, since 8000BC, it's only been as cold as it is now three times, and for each time only 200 or so years. So is it going to get warmer? Yeah, that's a safe bet if we don't get an ice age first. It's going to get a lot warmer before it gets to what's been normal and comfortable for most of modern human history.
Does Mann demand an explanation? No--there's nothing exceptional about the current trend--it doesn't require an exceptional explanation. It's just the climate being the climate.
The next thing I did was superimpose the rise and fall of the great human cultures in both the Old World and the Americas, with a focus on equatorial civilizations. With a couple of exceptions, they all get their start during warming periods. A few, the Hittites, both Romes, Islam, see their fortunes literally rise and fall with temperature.
But don't take my word for it. It's an hour's work to see for yourself.
I'm a Programmer. That's one level above Software Engineer and one level below Engineer.
I went through many of the posts here, it was very interesting to see how in the denialist camp you see so many trying to frame understanding of global climate change as a matter of belief.
This is understandable, since they are so short of arguments they want to move the debate to their home turf, where they feel comfortable.
It is frankly mind boggling how any single adjustment of the main thesis is immediately proclaimed as proof that everything is a sham with a straight face.
So Greenland is melting very fast, but twice as slow as previously thought, this is seen by the denialists as a get out of jail proof.
That people don't understand time scales is frankly astonishing: there are several people talking about 250 or 500 years being a long time, failing miserably to realize that this kind of natural events normally develop in a matter of thousands, tens or thousands normally, years. So if a glacier that has been in place for time immemorial melts in 5000 instead of 250 years it is still bad news.
The short term vision of some people is terrifying....
IANAL but write like a drunk one.
GW as well as CC is just like Richard Gere and Gerbils ...
http://www.dailyhaha.com/_pics/large_mouse_eater.htm
Quick! Change the name!
CLIMATE CHANGE!
Yeaaah! Then we'll be able to claim we're right, even when we're wrong! woo!
Correct me if I'm wrong, but wasn't it actually the right wing and their petrochemical backers who popularized the phrase "climate change" to squeeze the words "global warming" out of the debate?
EXACTLY !!!
It is ALL a political scam.
When talking about Arctic sea ice it's important to distinguish whether you are talking about ice extent (the area it covers) or ice volume. As far as 2010, it's not clear if ice extent will be lower than 2007 but ice volume is already below 2007 because multi-year ice has been disappearing year after year. We already have a record low for ice volume.