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Rising Seas Set To Double Coastal Flooding By 2050, Says Study (phys.org)

Coastal flooding is about to get dramatically more frequent around the world as sea levels rise from global warming, researchers said Thursday. Phys.Org reports, "A 10-to-20 centimeter (four-to-eight inch) jump in the global ocean watermark by 2050 -- a conservative forecast -- would double flood risk in high-latitude regions, they reports in the journal Scientific Reports." From the report: Major cities along the North American seaboard such as Vancouver, Seattle, San Francisco and Los Angeles, along with the European Atlantic coast, would be highly exposed, they found. But it would only take half as big a jump in ocean levels to double the number of serious flooding incidents in the tropics, including along highly populated river deltas in Asia and Africa. Even at the low end of this sea rise spectrum, Mumbai, Kochi and Abidjan and many other cities would be significantly affected. To make up for the lack of observational data, Vitousek and his colleagues used computer modeling and a statistical method called extreme value theory. "We asked the question: with waves factored in, how much sea level rise will it take to double the frequency of flooding?" Sea levels are currently rising by three to four millimeters (0.10 to 0.15 inches) a year, but the pace has picked up by about 30 percent over the last decade. It could accelerate even more as continent-sized ice blocs near the poles continue to shed mass, especially in Antarctica, which Vitousek described as the sea level "wild card." If oceans go up 25 centimeters by mid-century, "flood levels that occur every 50 years in the tropics would be happening every year or more," he said.

3 of 206 comments (clear)

  1. Re:Another End of the World scenario by Maritz · · Score: 5, Insightful

    Why not just come straight out and say chinese/hippy conspiracy? Why bother with the pretense?

    Your current leader thinks it's fiction (along with most of slashdot of course), so that should be a great comfort to you. Nothing bad will happen.

    BTW, what 'crop' of apocalypses?

    --
    I do not want your cheap brainburning drugs. They are useless for work. And I am a working man today.
  2. Re:Another End of the World scenario by Crashmarik · · Score: 5, Insightful

    Why not just come straight out and say chinese/hippy conspiracy? Why bother with the pretense?

    I am sorry, he is citing predictions that didn't happen. What do you call a theory that makes wrong predictions ?

    What do you call someone who pushes theories that don't make accurate predictions ?

    And with regard to your own attitude what do you call someone who is no longer looking at what is actually happening, and just shouting down anyone that disagrees with them ?

  3. Re:Is there no common sense anymore? by jandersen · · Score: 5, Insightful

    I get that it makes sense to be "concerned", but common sense provides that no panicking is required.

    I'm glad we agree on this. The panicking so far hasn't been from the scientists, who have simply been pointing out that there are problems coming up and that we'd better look at them, especially since we can address them. Most of the furore has come from sensationalist media and different interest groups on both sides; those that want us to abandon all modern industry in the name of nostalgic (but misguided) environmentalism, and those that only care for their own, short term interests and don't give hoot for what happens to others. Such as the fossil fuel industry - they know perfectly well that it would benefit the world both environmentally and economically, if we seriously developed renewable energy, and it would even benefit the energy producers themselves in the long term; but they don't want that - it would cost investments up front, and they wouldn't see the profits from that for maybe decades. That's where all the panic and yelling comes from, not from the climate scientists.

    However, at the end of all this, we DO have a problem, it is likely to become serious, even if to a lay-person a few millimeters or 5 degrees doesn't sound like much. And fortunately we can do something about it - a lot, in fact. But it is like all other 'repairs': at first you notice a mouldy spot on the wall paper in a corner, and you know that there is a small leak in the roof. If you fix it now, it will cost you a bit of sweat, standing on a ladder, maybe you have to spend a bit of money. Or you can wait until the whole roof is sagging, and you have to replace large parts of the structural timber and redecorate most of the house; and you will have call in a team of builders, you may have to move out for a couple of months and it will costs very serious money. I can't see why the choice is hard to make.