So, even this LINK rich but simple brief is years old. But it explains his change from a Believer to denying an AGW problem for the world.

“The Skeptic’s Case

“Who Are You Going To Believe – The Government Climate Scientists Or The Data?

Guest Post Dr David M.W. Evans

“We check the main predictions of the climate models against the best and latest data. Fortunately the climate models got all their major predictions wrong. Why?”

Beyond prediction failure, Evans explains the failure to find a tropical hotspot — an atmospheric region of accelerated warming — acknowledged in IPCC Report documents.

Without this mechanism, there is no physical way for AGW to be excessive, instead of minot, because then increasing CO2 levels cannot amplify temperature levels and thereby drive hydrogeological cycle (ie, water vapor) that could create bad weather, and dramatic clinate events harmful to humans and nature.

Secondly, he cites satellite measurements first identified by climatologist Dr Roy Spencer that show the Earth’s measured radiation budget is net negative to positive temperature purtabations.

The climate change models all predict positive climate system reactions. But the actual measurements falsify this assumption.

AGW needs a climate system in jeopardy that can be destabilized for there to be a problem we have to address. But the facts contradict this fundamental assumption.

Therefore, he’s a skeptic of the AGW harms Believers insists require our action.

The problem they insist on solving simply doesn’t exist because the evidence proves it doesn’t exist.

https://joannenova.com.au/2012/01/dr-david-evans-the-skeptics-case/

This segues nicely to another changer because if 2009s Climategate revelations, the great science writer Dr Matt Ridley (Zoology, Oxford).

His presentation to the Royal Society (of Science – the oldest such outfit in the world – in 2016 finds him emphasizing that the best evidence is that human caused warming can only be small, and that increasing evidence from multiple researchers finds the net benefits of added CO2 is very positive and is greening the planet.
https://youtu.be/j5M1qtN62yk

Yet this good and great news gets hidden. (Such as the multi-trillion dollar benefit of free fertilizer goosing production of human staple crops, reducing world hunger.)

If you are unfamiliar with Dr. Brown’s post which I posted above, please read it. I believe it is impossible for any rational, honest person to address the points he makes and embrace the CAGW position. We do not know and simply cannot know enough to conclude that CAGW is proven.

You say you like Judy Curry. She has certainly been moving to a position with more integrity. She admitted some years ago that she willingly lied to the public by signing global warming statements without any knowledge of the underlying science. Of course, she was just one of thousands of scientists joining in the lies. She gets props for being embarrassed about it.

this classic post agrees with you. An excellent first look at how a scientist with integrity looks at CAGW

https://wattsupwiththat.com/2012/06/22/a-response-to-dr-paul-bains-use-of-denier-in-scientific-literature/

A Unified Field Theory, or a THEORY of EVERYTHING (TOE) , would enable one overall encompassing theory to be used in modeling/explaining all aspects – from the very small to the very large – of the universe. It would essentially “reconcile” quantum mechanics and relativistic physics.

Well, you physicists out there; such a theory exists !!!
At least an analogue to what you seek.

It called AGW or simply Climate Change.
It explains every conceivable type of weather or climate or storm.

Too hot? too cold? no snow? too much snow? too wet? to dry? to windy? no wind? too many tornadoes ? no tornadoes? hurricanes? no hurricanes? building collapse due to faulty concrete? building remains standing despite faulty concrete? El Nino? no El Nino? rising sea levels? rising land masses? population increase of polar bears? population decline of polar bears? melting ice caps? expanding ice caps?……..

I could go on, but you get the picture. Climate “scientists” have successfully devised a THEORY OF EVERYTHING (TOE) !!!

And how, pray tell , have they done this?
By “TUNING” their computer models; which they readily admit ( how nice of them.).
Of put more bluntly, they keep adjusting the input parameters of their computer models, until they get as close as they can to the result they seek.
True, they still !!! get the wrong answer (i.e., their model results do NOT conform with actual, measured data), but so what. Their TOE also includes producing wrong answers and yet, just stating, just claiming that their models are correct and using these models that produce the wrong answer is no reason not to use them to predict the future climate.

Einstein, Newton, Oppie, Feynman, Dirac, Planck, Heisenberg, Bohr, Bethe, et. al. are spinning in their graves wondering why they did not think of doing this; producing wrong results , but just claim the results are not really wrong, so use them to predict future events. What a grand idea.

The TOE also included “massaging” historical temperature data, data, say, from 1900 through 1970, and lowering the actual measured temperatures.
TOE requires that not some, not a few, not just the data that needs to be lowered, but lowering ALL the data, so as to make today’s temperatures appear much higher than the actual recorded temperatures.
Now, one would expect if historical data needs “adjustments,” some of the data would be changed higher, some lower, and some not at all.
But TOE does NOT allow this !!!!
TOE demands that our existing climate is the warmist in the last 3 BILLION YEARS.
And,folks, TOE does just that.

Heller’s “Climate Colusion and Fraud (Part 1)” Aug 18, 2020
https://youtu.be/CqsvYAW1idg

Heller’s “Climate Colusion and Fraud (Part 2)” Aug. 19, 2020, Climategate smoking gun Email, NOAAs Climate History keeper Tom Wigley wants to get rid of the “1940s blip” of warming
https://youtu.be/FqjQxv6HtUA

It’s also a very inconvenient truth that we can’t really know what natural climate would be without human activity without the benefit of thousands of years of time passage. Weather phenomenae are rather erratic. It’s difficult to discern true trends without hundreds of years of observation. Even though we’ve been trending out of an ice age for thousands of years, climatologists working in 1650, around the start of the first, Little Ice Age, would have falsely assumed the warming trend had halted and we were heading down another path towards a new ice age.

Anyway, I thought AGW was the goal. “Everyone complains about the weather but nobody does anything about it.” Humans are finally making the whole planet more like Miami yet we still complain! There’s no pleasing some people.

Wretched excess in welfare spending generally, public housing, rent control. With a side-order of irreligion and institutionalized adultery. And they have these amusing bathroom fixtures for washing one tiny part of the anatomy while assiduously refusing to wash any other part.

And yet, they have developed what may be the most handsome and elegant spoken language in the world, they know how to build public bureaucracies which can execute their missions satisfactorily, and they are (in their way), admirably (and maddeningly) inner-directed.

Vive la France!

They have gone the other way on nukes. They do other boneheaded stuff, though.

— We know that global warming scientists lied relentlessly. We can read their emails.

— We know that the claim that warming in the 2d half of the 20 century was unprecedented is simply wrong.

— We know that the models fail badly. We know that they employ a stats approach that is flawed. We know that they disagree among themselves as to the climate sensitivity to CO2 by huge margins. We know the science can’t possibly be settled given all the different models.

— we know that the temperature data bases are altered every 3 months to make the past cooler and recent years warmer.

— we know that the hockey stick was a fraud. Improper data series included, use of data upside down, inaccurate code for principal component analysis, failed verification stats. And we know that “hide the decline” was deliberate scientific fraud.

— we know that Monnett’s famous polar bear study is the most incompetent joke in the history of science. Seriously. And he does too. Look at the interview he did with govt agents looking into claims of his improper handling of funds. We know that the polar bear population has increased from about 6000 to over 30,000. And we know that when a polar bear researcher states that fact they are intimidated and abused by other scientists for undermining the narrative.

— We know that the (supposed gold standard) CRU’s databases are a hopeless mess. See Harry Read Me.

— We know that 90% of the US temp monitoring sites flunk basic science siting requirements. We know the rest of the world is even worse.

— We know that the heat island effect is real and that the temp databases fail to account for it properly.

— We know that climate science cannot explain why the earth has experienced vastly different climates. Or why it was warmer in the MWP and Roman periods than currently despite lower CO2 levels. Or why temperatures were lower in the dark ages and little ice age. Or why they started warming about 200 years ago.

— we know that the global warmists abuse and intimidate any researcher who disagrees. That no young climate scientist will buck the narrative because to do so is instant death for their career. We know that dissent is censored from major science journals.

And that’s just a small sample of things we know. Only a fool would listen to the lies, incompetence, intimidation and abuse of dissent and believe.