Four hours ago you wrote: "I googled climate acronym and it came up with MMCCC. Man made catastrophic climate change."

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I think you get the idea. I would like you to identify where you found the term "Man made catastrophic climate change." It's not hard. 

I can smell a WUWT'er as soon as you mentioned UHI. A constant higher temperature due to the UHI does not influence temperature changes. Per realclimate

"The simple take-away is that while UHI and other urban-correlated biases are real (and can have a big effect), current methods of detecting and correcting localized breakpoints are generally effective in removing that bias. Blog claims that UHI explains any substantial fraction of the recent warming in the US are just not supported by the data."