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Known Unknowns
Antarctica Isn’t Melting as Fast as We Thought
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  • jeburke

    The alarmists will still keep repeating the earlier supposed “facts.” The truth no longer matters.

  • CaliforniaStark

    Actually, according to a recent NASA study, the Antarctic ice is actually growing. Here is a quote from NASA website about an article published in the October 20, 2015 edition of the Journal of Glaciology:

    “A new NASA study says that an increase in Antarctic snow accumulation that began
    10,000 years ago is currently adding enough ice to the continent to outweigh
    the increased losses from its thinning glaciers.

    The research challenges the conclusions of other studies, including the
    Intergovernmental Panel on Climate Change’s (IPCC) 2013 report, which says that
    Antarctica is overall losing land ice.

    According to the new analysis of satellite data, the Antarctic ice sheet showed a net
    gain of 112 billion tons of ice a year from 1992 to 2001. That net gain
    slowed to 82 billion tons of ice per year between 2003 and 2008.”

    Am curious, how much further evidence will it take for Via Meadia to not feel it needs to preface every article contradicting the global warming conventional wisdom with statements such as: “That doesn’t mean we have to disregard the threats posed by climate change.”

    • Jim__L

      An interesting note on the geology of ice — growing ice sheets will depress continental plates, and shrinking ice sheets cause continental plates to rise.

      Other geological activities occur that also affect the altitude of continents, which we may or may not understand before they actually happen.

      Making predictions is hard, especially about the future, as Yogi Berra said.

  • Fat_Man

    “melting Arctic ice”

    Wrong. Floating ice does not change the water level. Try it at home.

    • Caius Keys

      What about the ice that’s on land brain wave?

      The girl’s best friend is a fatman
      He gives her pearls and diamonds
      Sometimes she looks so blown away
      She hangs her head against the window

      • Jim__L

        Er, there’s no land in the Arctic. Antarctica, sure; Greenland, of course; but not the north pole itself.

        I’m curious what sort of effect Earth’s rotation has on the structure of the Arctic cap, and whether its rigidity affects the amount of ocean water it displaces. Probably not enough to make a huge difference on sea levels, either way.

        • Caius Keys

          Probably impacts mostly through ocean currents… just spitballing…

          • Jim__L

            Trouble is, most Global Warming “debates” among very intelligent people end up with participants spitballing to rationalize how everything causes or is caused by global warming.

            It’s faith, not science.

          • Caius Keys

            So you’re a cultural Marxist? There’s no truth or falsity? Everything’s relative? Good to know! http://www.breitbart.com/big-government/2015/11/19/cultural-marxism-enemy-review-michael-walshs-book-devils-pleasure-palace/

          • cpnorton

            At least Jim deserves a Nobel prize as much as Al Gore’s “Inconvenient Truth” which was filled with more politically hyped propaganda than actual science.

          • Jim__L

            I should clarify — the “debates” I’m referring to are among Global Warming supporters talking over the latest news. (Sometimes these “debates” are published AS news.) Most of the time there’s very, very little science / chemistry / evidence at all that could lead anyone to truth.

            Stochastic computer models certainly aren’t a truth test of any kind. I’ve worked with them, and when they’re complicated enough, you can play whatever silly games you want with the innards and sometimes you get worse results, sometimes better.

  • Andrew Allison

    “And let’s be clear about what we do know: Humans are emitting enormous quantities of gases that trap more of the sun’s heat in our atmosphere, which then leads to rising global surface temperatures. We can expect a hotter planet to have both less ice (and therefore more water) and warmer (and therefore more voluminous) water. From that, it’s not unreasonable to expect rising sea levels.” is arrant nonsense based on the premise that we know the connection between atmospheric CO2 and temperature. As the past 20 years clearly demonstrate, we don’t.

    • Jim__L

      Rising atmospheric CO2 will, by itself, contribute a nonzero amount towards warming the Earth.

      Whether the Greens’ dire predictions of runaway feedback loops have any basis to them, whether countervailing trends in atmospheric chemistry will end up dominating, we simply don’t know.

      Is the chance it will happen worth de-industrializing humanity? No.

  • Jmaci

    On this subject, the link below is worth reading. It’s as much about faulty computer models as the impact of CO2 on the atmosphere.

    http://www.climatedepot.com/2015/11/19/scientists-declare-un-climate-summit-goals-irrational-based-on-nonsense-leading-us-down-a-false-path/

  • Rick Johnson

    You need to fix your key point.
    It should read something like this.
    Let’s be clear about what we do know: Humans are emitting enormous quantities of gases that trap more of the sun’s heat in our atmosphere (so too are a large number of natural causes which we have no control over), which could lead to rising global surface temperatures. however, actual real world data shows this isn’t happening. We have no way of knowing whether we can expect a hotter planet, whether we can expect to have less ice or warmer water. From that, it is plain simple Green scare mongering to expect rising sea levels.

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