Pre-1995 Temp Reconstruction Shows MWp and LIA

Discussion in 'Environment' started by IanC, Jun 18, 2012.

  1. IanC
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    IanC Gold Member

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    Climatic implications of ´<sup xmlns="">13</sup>C variations in a Japanese cedar (<i xmlns="">Cryptomeria japonica</i>) during the last two millenia

    [​IMG]

    this is a delta 13C reconstruction from Japan.

    the WUWT article is about why the IPCC shouldnt have credulously accepted M Mann's 'disappearing' of the MWP. Mann&#8217;s &#8216;hockey stick&#8217; claims of the MWP and LIA being local were refuted years before it was published | Watts Up With That?

    what I would like to see is ^13C studies done at the same time, and on the same samples as treering width, area, and other measurements. if multiple lines of investigation from the same samples show similar results it would be much more convincing. especially if the experiment was designed by one group, collected by another, and measured by a third. with no deleting of inconvenient data of course.
     
  2. Old Rocks
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    Old Rocks Diamond Member

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  3. bripat9643
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    bripat9643 Diamond Member

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    They're all based on the same bogus tree-ring proxy data, and they all use the same flawed statistical methods. Steve McIntyre examined all these hockey stick analysis, once removed, on his website - ClimateAudit.com
     
  4. Oddball
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    Oddball BANNED Supporting Member

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    Looks to me like the SS Hockey Puck took a hit amidships!

    Hockey Stick Was Refuted Before Its Fabrication &#8211; Study Ignored &#8211; IPCC And Mann Took World On 10-Year Joyride

    WE'RE TAKIN' ON WATER, MATES!....ARRRRRGH!
     
  5. Old Rocks
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    Old Rocks Diamond Member

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    Probably ignored because it is incorrect.
     
  6. Old Rocks
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    Old Rocks Diamond Member

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    Sure, dumb ass, sure. And you obviously have never read anything concerning the proxies and data used in the other studies. Just flap your yap and demonstrate the depth of your stupidity.
     
  7. OohPooPahDoo
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    OohPooPahDoo Gold Member

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  8. bripat9643
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    bripat9643 Diamond Member

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    They and their problems have all been discussed at Climate Audit. Most of them use the long discredited Bristlecone Pine studies.
     
  9. Old Rocks
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    Old Rocks Diamond Member

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    LOL. So easy to repeat a really stupid lie, isn't it, Pattycake.

    What evidence is there for the hockey stick?

    Of course, these examples only go back around 500 years - this doesn't even cover the Medieval Warm Period. When you combine all the various proxies, including ice cores, coral, lake sediments, glaciers, boreholes & stalagmites, it's possible to reconstruct Northern Hemisphere temperatures without tree-ring proxies going back 1,300 years (Mann 2008). The result is that temperatures in recent decades exceed the maximum proxy estimate (including uncertainty range) for the past 1,300 years. When you include tree-ring data, the same result holds for the past 1,700 years
     
  10. IanC
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    IanC Gold Member

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    did you read the article? its not really that complicated.

    the IPCC, Mann and others saw that the message would be much more dramatic if the MWP just went away and they could claim exceptional warmth. small fudges turned into bigger bodges which turned into outright misdirection and deception.
     

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