Global Warming Update

10 Responses to Global Warming Update

1. Ockham says:

   September 1, 2012 at 2:34 pm

   Every time I cite the rss satellite data as evidence of the lack of warming in recent years, I get doomsday fanatics jumping all over me that I should be using UAH data. I should be because of what Spencer said here: http://www.drroyspencer.com/2011/07/more-on-the-divergence-between-uah-and-rss-global-temperatures/
   UAH still shows a slight trend.

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2. Les Johnson says:

   September 1, 2012 at 2:43 pm

   Oddly, only UAH shows a positive trend throughout the record. About 2001, it is insignificant, but that is the lowest.

   RSS is negative, though insignificant, from 1997.

   The other data sources go to zero around 2001.

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3. Sundance says:

   September 1, 2012 at 3:12 pm

   In the BAMS “State of The Climate, 2008” IPCC climate models were tested against temperature on a decadal basis for 10 years. The scientists testing the models state:

   “Near-zero and even negative trends are common for intervals of a decade or less in the simulations, due to the model’s internal climate variability. The simulations rule out (at the
   95% level) zero trends for intervals of 15 yr or more, suggesting that an observed absence of warming of this duration is needed to create a discrepancy with the expected present-day warming rate. ”

   We are now at 15.66 years of near zero/negative trend depending on temperature data used. If this isn’t grounds for a debate as to the accuracy of IPCC climate models then I’m at a loss to understand why science is even involved in climate change.

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   • tckev says:

     September 1, 2012 at 4:25 pm

     Baring in mind that computer models have never been a good method of proving a theory. The variation in different model’s output, and their lack of correlation with reality, is not surprising.

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4. Amino Acids in Meteorites says:

   September 1, 2012 at 4:45 pm

   Bloody murder alarmists prefer James Hansen data, you know, the pretend warming trend data set.

   i.e., GISTemp

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5. Amino Acids in Meteorites says:

   September 1, 2012 at 4:52 pm

   You even started at a low of La Nina before the 1998 Super El Nino! Why not go from Ell Nino peak to El Nino peak, 1998 to 2012. It would be fair and it would show even more cooling.

   http://www.woodfortrees.org/plot/rss/from:1998.2/plot/rss/from:1998.2/trend

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6. Will Nitschke says:

   September 2, 2012 at 12:58 am

   And something odd is happening with the El Nino forming in the pacific right now. Cold water is accumulating off the coast of South America and it seems to be interacting with below average SST’s in the North Atlantic as well. Could be why some dynamical models are showing that the El Nino is going to fad away. Whatever happens will be interesting to watch.

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   • Will Nitschke says:

     September 2, 2012 at 1:00 am

     Meant to write North Pacific…

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     • Amino Acids in Meteorites says:

       September 2, 2012 at 3:00 am

       It also looks like cool water is just starting to forming under the cooling equatorial water.

       http://www.bom.gov.au/climate/enso/sub_surf_mon.gif

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     • Will Nitschke says:

       September 2, 2012 at 3:14 am

       Thanks! Also keep an eye on:

       http://www.ecmwf.int/products/forecasts/d/charts/oras4/reanalysis/sections/xzmaps/1m!1m!201203!Anomaly!Temperature!/

       Although I suspect you do anyway…

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