Which climate argument about Medieval warming do you find most PERSUASIVE? Medieval period was warmer than now but with lower CO2 : https://bit.ly/2LP9uvE Medieval period was only warmer because of known sun activity and fewer volcanoes https://bit.ly/2RvzSjk
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“Not credible”? https://www.prageru.com/presenters/richard-lindzen … Perhaps you should contact him directly and point to the flaws in his argument. He likely welcomes debate. Just sayin’

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Or point out the flaws to his presentation directly on the PragerU video. By the Way, Bjorn Lomborg has also done a few
@PragerU https://www.prageru.com/5-minute-videos#search …
End of conversation
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This data might be of interest https://cdiac.ess-dive.lbl.gov/trends/co2/vostok.html … http://www.ncdc.noaa.gov/paleo/icecore/antarctica/vostok/vostok_data.html … DT/DY has decreased the last 50yrs
@ScottAdamsSayspic.twitter.com/B7gV1oSEDx
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