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OT: Moorabal/Lal Lal wind farm 5-Jun-2009 At 4:08:36 PM harold

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On 5/06/2009 evanbb wrote:

>>Firstly here's a graph from the IPCC. It shows how temperatures were
>>much higher than currently during the Medieval warm Period.
>Now, I know this is a harsh term, but I think you're pulling a furphy
>here. That graph is not from the IPCC. Would you mind giving me a link
>to where you got it? The only graph I could find from the IPCC is this one (Couldn't post it direct,
>because it is ENORMOUS)
>
>The IPCC tend to use funkier graphics than your pov B+W effort.
>
>Oh, and I just noticed, it stops at 1990 for some reason. Why exclude
>the last 18 years of data? You know we're well into the 2000's now, maybe
>that's your problem? All your arguments are based on 20 year old data.

I think Tony is using the IPCC 1990 graph because it includes the medieval warming period and little ice age. I always thought the timing was a little too 'convenient' when these were discarded in later reports to flatten out the last 1000 years.

>>Now to my quiz. It shows the same two periods: 1910-1940 compared to
>>the past 30 years. The latter is on the right !
>>The correct answer is hence "(C)" ... there is no discernable difference
>>in the rate of warming before and after man's increased CO2 production.
>
>This is utter bullshiit. 'No discernable difference?'
>Put this
>in your narrative and smoke it.
>

Looking at the IPCC graphs you've posted, there still appears to be very little discernible difference in the slope of the temperature line between the two time periods 1910-1940 and 1979-2009.