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Study: Antarctic Sea-Level Rising Faster Than Global Rate

An anonymous reader writes with this bit of good news for everyone who is waiting for their homes to one day be on the beach. Melting ice is fuelling sea-level rise around the coast of Antarctica, a new report in Nature Geoscience finds. Near-shore waters went up by about 2mm per year more than the general trend for the Southern Ocean as a whole in the period between 1992 and 2011. Scientists say the melting of glaciers and the thinning of ice shelves are dumping 350 billion tonnes of additional water into the sea annually. This influx is warming and freshening the ocean, pushing up its surface. "Freshwater is less dense than salt water and so in regions where an excess of freshwater has accumulated we expect a localized rise in sea level," explained Dr Craig Rye from the University of Southampton, UK, and lead author on the new journal paper.

2 of 302 comments (clear)

  1. Re:What will it take? by Bender0x7D1 · · Score: 5, Interesting

    So if there's less ice, it's because of global warming. But if there's more ice, it's because of global warming.

    Yes. There is less ice in some areas due to global warming and more ice in other areas due to global warming.

    Think of it this way: Imagine the entire planet heated up by 20C, we wouldn't expect to see any permanent ice outside of Antarctica. (The North Pole might get some seasonal ice, but the much warmer oceans would melt it fairly quickly.) Now, with all of the oceans that much warmer, think how much additional water vapor would make it into the atmosphere. When the additional water vapor ends up over the South Pole, it will be cold enough for it to freeze and fall as snow. As the snow accumulates, it compacts into ice and we end up with a LOT more ice at the South Pole.

    So: Less ice everywhere but Antarctica due to global warming, but a lot more ice in Antarctica due to global warming.

    (And, yes; I do realize that this example is a vast simplification - and overstatement - I just used it to illustrate the point.)

    --
    Reading code is like reading the dictionary - you have to read half of it before you can go back and understand it.
  2. Re:unfair policy by curmudgeon99 · · Score: 5, Insightful

    Here's the problem with that line of reasoning. If--as you say--the entire Climate Change thing is bogus and the insurance companies are using it to raise premiums--where is the free market? Where is the one insurance company bucking the crowd? Surely, if this is a big myth, there has to be at least one big insurance company willing to sell cheap insurance. They could make a killing, were it true.

    The only problem with your theory is the missing contrarian. No insurance company is willing to buck the science. Not one.