Debunking Climate Hysteria, December 31, 2025

By December 31, 2025Commentary3 min read

Just because I don’t write about it every week doesn’t mean that climate hysteria isn’t alive and well.  Fortunately the few sane research voices are also heard at times, if you look for them.  Here is an example, a paper from a well-regarded Irish university scholar who did a reanalysis of global temperatures from around 1900 to now and compared them to CO2 emission trends.  (Note that generally you have to go outside the US to get solid research; in the US there is a hysterics cabal which blocks publication and keeps skeptics from getting jobs.)  While I have a level of skepticism about any use of older temperature measurements, the records used by this author are the same records used by the hysterics to claim we have runaway warming due to CO2, neither part of which I think is sustained by the evidence.   Unfortunately most of the best stations are in the US, and this study has essentially no Southern Hemisphere coverage and little in Asia.

What the author finds is that there was greater warming in the early 1900s than there was in the last few decades of that century and certainly than there has been in new century.  The highest warming trend occurred when there were very modest CO2 emissions, while less warming, even cooling has been observed when those emissions were quite high compared to historic levels.  Whether you look at annual emissions or the increased overall level of CO2, the inescapable conclusion is that the relationship between CO2 and climate, if any, is far more complex than the hysterics posit.  (Bhatta Article)

Another study finds that sea level was far higher around east Antarctica, and probably everywhere else since the oceans are all connected (leaving aside local land rising and subsidence factors), about 8000 years ago.  You will recall that a prominent climate hysteric theme is that all the ice in the world is melting and will raise sea levels to unprecedented levels to drown us all.  Well, turns out our current levels are not unprecedented at all.  The other interesting aspect of the study is how quickly the sea level rose over the next two thousand years, at a rate far faster than we are currently experiencing.  There is a lot we don’t understand about natural climate variability.  (QSR Article)

Kevin Roche

Author Kevin Roche

The Healthy Skeptic is a website about the health care system, and is written by Kevin Roche, who has many years of experience working in the health industry through Roche Consulting, LLC. Mr. Roche is available to assist health care companies through consulting arrangements and may be reached at khroche@healthy-skeptic.com.

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