I have a bit of hyper-attention syndrome, so I let myself get side-tracked, such as with a fresh comment at a YouTube video of - Stephen Schneider talking to 52 Climate Change Skeptics [PART 3] - https://www.youtube.com/watch?v=_wzEHtYk8B8\. which led me to reviewing the comments and finding this precious example of the contrarian mind in action. I'll start with my comment made a couple years ago, then my new pal's response. Then I'll follow with my usual collection of information for the interested student who wants to learn about these matters for themselves.
So-Called Medieval Warm Period Not So Warm After All
Study Undercuts Idea that 'Medieval Warm Period' was Global
The Medieval Climate Anomaly: A Myth Debunked
How does the Medieval Warm Period compare to current global temperatures?
Bob Ward thinks that Bob Carter has probably published the worst paper on climate change ever
Bob Carter Does his Business
Bob Carter's Financial Post Gish Gallop of Scientific Denial
Climate Myths as told by Bob Carter compared to what the science says.
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Regarding the end of this video
Her question about the reasons for "why we can't have a civil debate" and the hostile reactions of some.
Why not also ask:
Why is it considered OK to endlessly repackage and repeat misrepresentations of the science and Earth observations, up to and included lies?
Why should it be OK to ignore huge aspects of the known evidence?
Why should it be OK for an amateur's "science" to be given equal weight to an educated and seasoned expert (read: much examined and peer reviewed science?
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To which a character I'll refer to as sf9 writes:
"Since mr citizen raises the qualification question, Bob Carter of James Cook University is a Marine Geologist has equal qualification as James Hansen (PhD in Physics) or David Suzuki (PhD in Zoology)
regardless, Schneider denies volumes of evidence for global medieval warm period, still flogging the dead horse of the hockey stick , unprecedented fairy tale. There are hundreds of proxies from all over the planet that show medieval warming in excess of current temps."
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For starters, don't know what my comment has to do with anyone's "qualifications", it was about the dishonestly and reprehensibility of people assuming the right to lie about what scientists are trying to teach us!
I notice sf9 offers no references to support his MWP claim and I suggest sf9 is about 20 years behind on paleoclimate understanding of the past ten millennium.
Scientists do have a good understanding of the various "natural variabilities" that influence weather, an ever so slightly dimming sun, volcanic activity, even the reforestation of the America during the 16th century Indian holocaust in North and South America, that resulting in massive reforestation and pulling massive amounts of CO2 out of the atmosphere, played a role in the subsequent "LIA" - it's a complex dance between many known elements.
What sf9 is missing is that geophysically speaking, CO2 is an atmospheric insulation medium and a major regulator of our Earth's heat holding capacity. Period. The science is settled on that one. It really is that simple, no debate.
It is also settled reality that humanity, through its hydrocarbon driven modern marvels, has been injecting unimaginably massive quantities (of a geologic scale, even.) amounts of CO2 and other "greenhouse gases" into our atmosphere.
