You may be interested in Dr. Patrick Frank’s paper and video interview.  His full paper is attached below as pdf or here: https://www.mdpi.com/1424-8220/23/13/5976#

Patrick Frank is a physical methods experimental chemist. BS, MS, San Francisco State University; PhD, Stanford University; Bergmann Postdoctoral Fellow, The Weizmann Institute of Science, Rehovot, Israel. Now Emeritus scientific staff of the SLAC National Accelerator Laboratory and the Department of Chemistry, Stanford University. 

The link for the video interview with Tom Nelson is: https://youtu.be/0-Ke9F0m_gw?si=LylKk3mZflvO31FX

Screen capture from video interview of Dr. Patrick Frank linked above.

Spoiler alert!

5.3. Final Conclusions

Direct evidence of a warming climate since the 19th century includes the lengthened growing season, the revegetation of the far North, and the poleward migration of the northern tree line [274,275,276,277,278,279,280,281,282,283]. However, at the 95% level of uncertainty, neither the rate nor the magnitude of 19th or 20th century warming can be known. A more detailed appraisal of errors may modify the uncertainty bounds, but an alternative conclusion is unlikely.

The 20th century surface air-temperature anomaly, 0.74 ± 1.94 °C (2σ), does not convey any knowledge of rate or magnitude of change in the thermal state of the troposphere. Climate alarm on that account is unjustifiable. The Joule-drift that certainly plagued all LiG thermometers manufactured prior to 1885 obviates the reliability of earlier air-temperature measurements. The global averaged surface air-temperature anomaly record cannot sustain any notion of unprecedented climate warming over the last 200 years, or over any other timespan.

LiG Metrology, Correlated Error, and the Integrity of the Global Surface Air-Temperature Record

by Patrick Frank

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