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View Diary: How Hot Has It Been? (and why you should be alarmed) (232 comments)

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  •  The warmest US summer was 1936. We may (1+ / 0-)
    Recommended by:
    melfunction

    set a new record this year.  What caused the record heat 76 years ago?

    Where are we, now that we need us most?

    by Frank Knarf on Fri Jul 06, 2012 at 07:18:37 PM PDT

    •  good luck changing the subject. (1+ / 0-)
      Recommended by:
      peptabysmal

      An ambulance can only go so fast - Neil Young

      by mightymouse on Fri Jul 06, 2012 at 08:24:40 PM PDT

      [ Parent ]

    •  Caused by variability in weather (7+ / 0-)

      in 1936, and not by climate change.  1815 was the year without a summer, caused by a volcano eruption. That wasn't climate change either, and wouldn't be if it happened again. If weather wasn't highly variable, nobody would bother keeping track of record highs, lows and similar statistics, just like you don't bother taking your own temperature unless you're ill.

      However most of the next 10 hottest years have occurred since 2000 or so. That indicates a persistent change in climate, as does the thermal physics of the atmosphere with increasing CO2 concentrations and warming oceans.

      My parents got married in March, 1936 in WI - March is usually a horrible month there and cold, but their wedding pictures show trees blossoming and nobody wearing a coat.

      It's never too late to have a happy childhood - Tom Robbins

      by badger on Fri Jul 06, 2012 at 09:44:02 PM PDT

      [ Parent ]

    •  there actually is something of an answer (1+ / 0-)
      Recommended by:
      Cliss

      to that question.  I'll go find it later and add it to the record here.

      "Mitt Romney has more positions than the Kama Sutra." -- me "Social justice is love, made public." -- Cornel West

      by billlaurelMD on Sat Jul 07, 2012 at 07:11:34 AM PDT

      [ Parent ]

    •  and badger has part of it (3+ / 0-)
      Recommended by:
      Steven D, Cliss, Frank Knarf

      actually, I would consider anything that affects the mean temp of the earth "climate change".  It's just a matter of whether it's natural variability or anthropogenic.

      Part of the confusion is in the amount of climate noise there is just in the system itself.  It hides the signal coming from adding greenhouse gases until that signal emerges and becomes statistically significant.

      "Mitt Romney has more positions than the Kama Sutra." -- me "Social justice is love, made public." -- Cornel West

      by billlaurelMD on Sat Jul 07, 2012 at 07:13:56 AM PDT

      [ Parent ]

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