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Melting Greenland ice could amplify sea level rise in Boston

Posted by bdaley May 27, 2009 01:34 PM

By Beth Daley, Globe Staff

It’s been a debate among climate scientists for years: How much will sea level rise from climate change?


boston.jpg
A watery view of Boston (Globe staff photo/David Ryan)


Now, a new study led by the Colorado-based National Center for Atmospheric Research shows that the melting of the Greenland ice sheet this century may result in far higher sea levels in Boston and other Northeastern communities in the U.S. and Canada.

The study, being published in Geophysical Research Letters, says if the Greenland ice sheet melts at moderate to high rates, ocean circulation patterns may shift and cause sea levels off the Northeast U.S. to rise about 12 to 20 inches more than other coastal areas.

"If the Greenland melt continues to accelerate, we could see significant impacts this century on the northeast U.S. coast from the resulting sea level rise," says NCAR scientist Aixue Hu, the lead author. "Major northeastern cities are directly in the path of the greatest rise."

The study builds upon a study released in March that warned warmer water temperatures could alter ocean currents so that Northeast U.S. sea levels would rise more than the average global increase. But that study did not include what would happen if Greenland’s ice melted at moderate to high rates.

The study also shines a light on a fact about the ocean that many people may not realize: Unlike water in a pool, water levels in the world’s oceans are anything but uniform. Sea level can vary by several feet from one region to another, depending on ocean circulation and other factors.

For more information go here.

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16 comments so far...
  1. Blah Blah Blah,
    More of the same ridiculous poppycock from money grubbing scientists who feel that were all stupid because all they want is Grant money.
    It is so absurd that people are falling for this junk.
    Al Gore is nothing but a shill for scientists the(Nobel Prize) joke will be on him within 10 years.
    The joke however is on us now and our wallets.
    Patently absurd and a real crime.

    Posted by gcwnsw May 27, 09 02:00 PM
  1. gcwnsw, I read the article and the linked article as well - and it's funny, not once did I see any mention of Al Gore. Or any requests for money, for that matter.

    We can argue about the causes, but the fact remains that yes, the ice caps are indeed melting. The linked article talks about a range of sea level rise that *might* happen *if* the glaciers continue to melt - which, it would appear, they will. It's anybody's guess now of not so much about the if, but how much - and when. These scientists are trying to quantify all that so that ignorant members of the populace like yourself can be better prepared for such an eventuality.

    I mean really, if ignorance is bliss, you must be among the happiest people on earth . . .

    Posted by just sayin' May 27, 09 03:10 PM
  1. You said it GCwnsw......this is such a load. It would be impossible for the oceans to rise 12-20 inches in such a short time with such a small amount of ice melt. Who are these idiots .

    Posted by mars May 27, 09 03:18 PM
  1. It's a real relief to me to find that I don't have to be concerned. I guess it was just me and maybe a few rogue scientists who "fell for this junk." Now it's plain: the real scientific evidence is right here, on BDC, offered by people who've REALLY done their research. Who knew?

    Posted by AguaCaliente May 27, 09 03:22 PM
  1. 'gswnsw'....I must ask: Where did you come by this in-depth understanding of the issue? And which computer models do you use to generate your data?

    Posted by George Lovely May 27, 09 03:30 PM
  1. BTW 'gcwnsw' - last year the budget for the entire National Science Foundation (which supports many other areas of research besides climate) was $6 billion....Farm subsidies, which everyone (except the recipients and their congressmen) know to be a waste of taxpayer money cost us $24 billion. Why not focus your fiscal energy where in can do more good, without causing potential harm?

    Posted by George Lovely May 27, 09 03:46 PM
  1. Let me tell you something, global warming disbelievers - back in the late 50s, I spend a year, courtesy of the USAF on a SAC base in Thule, Greenland, north of the Arctic Circle. In the summer, when the temperature would get all the way up to a balmy 40 degrees and the snow would melt around the base, you could stand on a runway and see the Greenland icecap in the distance. It might have been five miles away. I visited it for Arctic survival training. Now you can't see the icecap anymore in the summer. It's probably twenty-five or thirty miles away. We also used to see huge chunks of ice falling into the see to create icebergs. The glaciers don't even come close to the sea anymore. The Greenland icecap is melting. GLUG!

    Posted by Boo33 May 27, 09 04:41 PM
  1. Wow, I can't believe how many people still do not have a clue to the changes occuring on our planet, the animals have surely known for a long time, their living areas and migration routes changing due warmer oceans, changes in habitat etc. Google glacier melt - do it in pictures, be easier for you. Alaska too, some 70 villages have to be relocated due the fact the permafrost beneath them is melting and they're sinking. Truth be known, everything is well in motion that we will be severely impacted in years to come, reducing our emissions or not, we've waited far too long with too many people like you who aren't educated enough to act.

    Posted by ENTJ156 May 27, 09 05:18 PM
  1. "Posted by ENTJ156 May 27, 09 05:18 PM"
    "the animals have surely known for a long time, their living areas and migration routes changing due warmer oceans, changes in habitat etc."

    That's priceless ENTJ156. :) The animals know. I'm sure if they could speak to use they'd collectively tell us that man is ... *EVIL* !!!!

    AGW is a disservice to real environmentalism. These predictions are made with a boatload of assumptions that don't pass the smell test. The IPCC doesn't even have the courage to make predictions. They call them "scenarios".

    I wish I could have a job where I could make grand sweeping pronouncements for which I'm completely unaccountable. I could preface all my statements with "if" and "may", all the while still collecting a paycheck courtesy of the taxpayers. Pretty sweet gig.

    Posted by whatacroc May 28, 09 04:34 AM
  1. "'[M]oney grubbing scientists," LOL! Thanks for the laugh, or is it a cry?

    Of course the monied interests who have enough left over to spend $billions annually to provide the gullible with such talking points could never be accused of this.

    Posted by jhm May 28, 09 10:48 AM
  1. Oh the freaking sky is falling! Polar bears are drowning! Give me a break. Sea levels have risen and fallen over the eons and life simply adapted. The only ones not privy to the benefits of evolution are you leftist envirowackos seeking to tax and tariff everything in sight in the name of saving the earth. You neanderthals ought to pick up your stakes and move the the coast where you can reap what you sow.

    Posted by J.B. May 28, 09 12:33 PM
  1. It is apparent that life on earth has been able to survive the continuous natural thaw/freeze cycle of all previous ice ages, including the most recent one which ended approximately 9600 B.C. Maybe we could put together all of the data since then, about 11600 years, and possibly come up with a theory? What caused the planet to thaw in the past? Could it be industrial carbon, auto emissions, or did it happen naturally? No, we should just create a mathematical model with 13 variables (2 of which are known) and use our political-greedy-power-hungry biases to influence the results. We could package it up, sell it to the public, scare people into believing that they are the cause of this outrageous climate change, and control them with regulations as a result of a corrupt system to gain power. Please look back to basic science, actual root cause analysis for all potential reasoning and phenomena responsible (not just humans), ask the 5 whys, use algebra to figure out that what pops out of a computer may not be the truth, and then say to yourself: “As we all know, the climate remains constant as it has since the beginning of time, so we [humans] must make a difference to stop it” and allow yourself to be continually brainwashed into control. If anything at all, we should determine a proactive plan to survive if the sea level actually rises, opposed to the attempt of stopping something that is already naturally going to happen.

    Posted by Mike T. May 28, 09 02:31 PM
  1. Just ask if all the ice melted how high would the sea rise? Water evaporates and then it rains. The climate will move around. Deserts will become forests and forest deserts. You cannot control this. Man is so vain that they thing that they can have an effect. Try stopping an earthquake, volcano eruption, or a title wave. Get real. Minimize your impact on the earth, but don't think that you can change it. Build a pipe and pump water to the deserts, we did it for oil. Yes global warming is occurring, but we cannot control it. Just adapt and live in a house on a hill, wear some sunscreen, and enjoy the warm weather.

    Posted by Jason June 3, 09 02:12 AM
  1. Seriously people, read the article. . . . This is not about WHY the ice is melting, it's about what will happen when it does. (Don't say "if"—for whatever reason, there is significantly less ice in Greenland now than there was 20 years ago, and the pattern does not seem to be reversing.) I am not a scientist but I do know one thing. When I need to find out something about the law, I ask a lawyer. I don't ask random opinionated people on the street. When I want to read up on science, I'll read a paper published in a respected journal, as opposed to the immediate emotional responses of politically biased anonymous online characters. I'm not saying that this study is undisputed truth or anything, but for now, it and similar studies are the best information we have.

    Posted by David Z July 1, 09 12:56 AM
  1. All you evidence based, scientific reasoned, rational thinking, wackos make me sick!

    Posted by Riverat August 21, 09 11:59 AM
  1. Google how much will sea level rise if the ice melts. It is metling you know. The answer is ar 200 feel. So much for 12 inches that they keep mentioning. What a joke! Not. And when it freezes over again as it will when the sea current gets switched off as it did in the last ice age New York wont be under 200 feet of water but several miles of ice again. As has happened many many times. We are in in for one hell of a ride.

    Posted by Peter Mclean September 25, 09 09:49 PM
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