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Seas Rising Faster Than Projected

New submitter zenyu writes "IPCC's 2mm per year estimate for sea level rise at current CO2 levels has proven too optimistic. Sea levels have been rising 3.2mm per year in the last two decades. The IPCC's 50 cm — 100 cm projection for the next century may prove equally optimistic."

8 of 605 comments (clear)

  1. No significant change for a century. by PerMolestiasEruditio · · Score: 4, Informative

    recent data doesn't show any increase in rate of sea level rise:
    http://sealevel.colorado.edu/
    looking at the decadal rate of increase it has actually been falling off for last 5 years:
    http://www.masterresource.org/wp-content/uploads/2011/09/sea_level_rise_fig1.jpg
    doesn't appear to be any significant alteration in rate of rise over last 100 years, rate of rise in 30's-60's was about the same as current:
    http://www.oceanclimatechange.org.au/content/images/uploads/2012_sea_level_fig1.jpg

    A rather big factor that needs to be taken into account is that since the 1950's there has been a massive amount of ground water abstraction for agriculture that is estimated to contribute something like 0.4-0.8mm/year to sea level rise (15-25% of total).
    http://news.nationalgeographic.co.uk/news/2012/05/120531-groundwater-depletion-may-accelerate-sea-level-rise/

  2. Re:Denier by will_die · · Score: 5, Informative

    You need to read into the numbers to find out why you are wrong. There are two main problems with USA life expectancy numbers:
    1) The US starts the clock one a breath is made by the child. Other European countries use weight, length, and some other factors to determine when life starts. With the US saving so many premature and all of them counting when they die from being so premature it lowers the US numbers. Also death counting is different, US counts all people who die on its soil for other countries they don't count non-citizens.
    2) To many foreigner who were born in poorer countries. The countries you have listed and other with higher life expectancy have one thing in common fewer percentage of people who were born outside of that country or were born in poor countries.
    Look at charts to see life expectancy from ages 5,25,50,75 and that listing changes.

  3. Re:One consistent theme by dkf · · Score: 4, Informative

    Plants love CO2.

    On the other hand, plants aren't so keen on heat stress. There's multiple effects going on, some of which are positive and some negative and many of which are non-linear, and that's why this stuff is so hard to work out: balancing the relative sizes of all these things to get the overall picture (especially in non-equilibrium situations) is viciously difficult.

    --
    "Little does he know, but there is no 'I' in 'Idiot'!"
  4. Re:Denier by characterZer0 · · Score: 4, Informative

    Also: Big Macs, 64 oz. sodas, and no exercise.

    --
    Go green: turn off your refrigerator.
  5. Re:Denier by Cyberax · · Score: 4, Informative

    " The US starts the clock one a breath is made by the child. Other European countries use weight, length, and some other factors to determine when life starts. "
    Bullshit. In reality average lifespan in the *US* is calculated WITHOUT taking child mortality into account.

  6. Re:Denier by MyLongNickName · · Score: 4, Informative

    http://www.worldlifeexpectancy.com/your-life-expectancy-by-age

    This shows that an average 25 year old in Germany has a longer life expectancy than his counterpart in the U.S. by about 1.2 years.Interestingly, an 80 year old in the U.S. has a longer life expectancy than Germany.

    In all fairness, I am not sure that this spells any significant difference in health care as the U.S. has a much higher mortality rate from car accidents than any European country. Regardless, the original discussion was about other countries having poor health care compared to the US, but these numbers show otherwise.

    --
    See my journal for slashdot ID's by year. Mine created in 2005. http://slashdot.org/journal/289875/slashdot-ids-by-year
  7. Re:Denier by Anonymous Coward · · Score: 5, Informative

    Except America actually spends more than Europeans on healthcare!

    Read it and weep, fuckhead.

  8. Re:IPCC politics by Anonymous Coward · · Score: 4, Informative

    Other than Alaska's armpit (to coin a phrase), pretty much all going up, mostly in the 0-3mm/year range, but a hell of a lot of yellow and quite a bit of red. What exactly makes you claim it in some way debunks TFA? It appears to support it at first glance.