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Politics : Politics of Energy
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To: Maurice Winn who wrote (62128)12/15/2014 10:33:45 AM
From: Wharf Rat1 Recommendation

Recommended By
Eric

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"Warming started 10,000 years ago "

No, it didn't.




Figure 1: The temperature reconstruction of Shakun et al (green – shifted manually by 0.25 degrees), of Marcott et al (blue), combined with the instrumental period data from HadCRUT4 (red) and the model average of IPCC projections for the A1B scenario up to 2100 (orange).

The good news for climate contrarians is that the current rate of global warming appears to be unprecedented over the past 11,000 years. During that timeframe, the difference between the hottest and coldest average global surface temperature is around 0.7°C, with the cooling between those temperatures happening slowly, over about 5,000 years.

Over the past 100 years, we've seen about 0.8°C global surface warming

skepticalscience.com
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