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[Mauritsen et al. 2025] - Earth's Energy Imbalance More Than Doubled in Recent Decades "Worryingly, the observed energy imbalance is rising much faster than expected, reaching 1.8 Wm−2 in 2023—or twice that predicted by climate models—after having more than doubled within just two decades."

And at the global level the net effect of all adjustments actually reduces the overall warming trend. [Haufather 2017]

It turns out Lindzen's Iris Theory is yet another failed contrarian theory. The Earth does not have some magical iris that prevents warming by reducing absorbed solar radiation. In fact, the consilience of evidence points to a positive shortwave feedback which was hypothesized as early as the 1960s.

That is a really good and interesting question. This touches on the topic of ENSO as well. As we've discussed before the ENSO region hasn't warmed in the last few decades despite the global average warming. As a result the general circulation patterns that had once typified the ENSO cycle are no longer playing out; at least not in the same way as they once did. This is because El Nino's appear attenuated and La Nina's amplified against the global backdrop. This is the primary motivation of new indices like the RONI.

Here is the academic publication related to Google's new cyclone model. [Alet et al. 2025]

Discussing the justification for corrections is irrelevant if your position is still that corrections should never be applied to fix biases, errors, and/or mistakes. I'm asking if you still maintain this position because it sounds like you are having second thoughts about it...which is good. But I'm not going to waste my time explaining how we can know what the biases and errors are if you don't think correcting them is ever justified.

Stop deflecting and diverting. Is it okay to study data for the existence of biases, errors, or mistakes and make the appropriate corrections or not?

You've been telling me the problem is the act of making corrections or even just determining if there are biases, errors, or mistakes is fraudulent and should never be done under any circumstance.

Speaking solar cycles...The study of solar output is a great example of another discipline of science that performs corrections/adjustments for biases and errors in the instrumentation to create a more accurate picture of what is actually happening. Dr. Kopp's webpage is a good starting point for the science of solar output in general, but more pertinent to the discussion at hand you can see how the bias corrections/adjustments work to homogenize the observations of the different solar observatories and that without these corrections/adjustments scientists would grossly misinterpret how the Sun behaves.

Nobody is challenging Milankovitch or solar behavior that causes cyclic oscillations in Earth's climate. In fact, it is scientists who have assessed and corrected biases, errors, or mistakes in the pioneering works of early scientists that we figured out that Earth's orbit and solar output wasn't actually static.

And here's the thing. If you know the raw data is wrong because you analyzed the situation and determined that a sighting change caused the 2 F bias then just subtract out the 2 F bias like what everyone else in all other disciplines of science does. It almost defies credulity that we are even having a debate about that. Correcting biases, errors, and/or mistakes is the ethical thing to do. Doing anything else is unethical at best and fraudulent at worst. And in some professions if you knowingly ignore a bias, error, and/or mistake or omit data because of such you can cause serious harm up to and including death and/or be prosecuted for a crime as you should be. This is why I want to know the root of this worldview in which biases, errors, and mistakes should be ignored contrary to any rational interpretation of "right" vs "wrong". How did contrarian thinking get so warped that they completely reversed the interpretations of "right" vs "wrong"?

Oh...got it...so the requirement is that you must prove it is wrong. That is convenient because even the most trivial analysis would prove some level of wrongness, but if you don't even make the attempt then you can always claim that you never proved it to be wrong. Brilliant!!

They're all wrong in some way. There are no measurements/observations in any discipline of science that are immune from biases, errors, and/or mistakes. Not even a single one. Literally every single observation or measurement ever taken by humanity including but not limited temperature has a bias, error, or mistake of some kind. Literally...EVERY...SINGLE...ONE. Let your actions show how convicted you are of this position. Shutdown your website and social media accounts and throw away all of that data you that you claim isn't worth keeping. And you can bet that going forward I'm going to call you out every time you post here with a measurement/observation or the implied use of one.

I didn't ask about the specifics regarding how to determine if there are biases, errors, or mistakes in a temperature record. I asked why we should knowingly keep biases, errors, and mistakes in a temperature record and why we should not digitize and upload old station observations.

In a contrarian forum recently a poster commented "that a temperature record which keeps on changing the past hardly can qualify as being correct." I asked if he thought we should knowingly leave biases, mistakes, and errors in the record and whether we should knowingly omit (by not digitizing and uploading old station observations) in the record. The response I got back was..."After thinking about it… yes." Based on my conversations with @ChescoWx, @John Shewchukand others it seems that this reversed worldview of right vs wrong is shared among many contrarians and it is this warped worldview that drives much of the contrarianism in regard to climate science. I'm not sure what the point of my post is here other than an expression of incredulity that this warped worldview exists at all. @ChescoWx and @John Shewchuk if I have misrepresented your position here please correct me. It is never my intention to misrepresent someone. And if you are willing to engage maybe you cold help us understand the roots of this worldview.

Another observation that casts substantial doubt on the geothermal hypothesis is the cooling stratosphere. If increased geothermal activity were the cause of the warming we would expect the stratosphere to warm; maybe not at the same rate as the troposphere, but warm nonetheless.

My prediction for UAH for the year 2025 is 0.47 ± 0.14 C using a simple 5 parameter machine learning model. That means it is more likely than not to be the 2nd warmest year in their period of record. And that's with a mostly ENSO neutral backdrop.

Good point. I wasn't even aware of the cloud nuclei effect.

Speaking of Tony Heller...his anti-science viewpoint is so extreme that even the Watts Up with That blog, which is already one of the most anti-science blogs out there, banned him.

@ChescoWx The argument that climate science is not "settled" is the fallacy of false dichotomy. It is not a requirement that 100% of the minutia of details be "settled" for certain core principals to be "settled". For example, we don't need to know exactly how much the planet will warm given a 2xCO2 pulse to a hundredth of degree to know that the planet will indeed warm within some reasonable margin of error. That fact that it will warm is as "settled" as anything else in science that is considered "settled". We don't need to know every single factor that can influence the climate to know that humans can and do influence the climate significantly. The fact that humans influence the climate is as "settled" as anything else in science that is considered "settled". The fundamental principals dictating our knowledge and understanding of climate change is indeed "settled".

No.

[Hansen et al. 2025] - Global Warming Has Accelerated 2024 comes to end with Hansen (and cohorts) calling it. Global warming has accelerated. Those who track my posts know that I'm more pragmatic and conservative in general in regard to global warming perhaps even to the point that some might call me a skeptic though that would obviously mischaracterize my position. I just simply take a more middle-of-the-road IPCC style position. And I've said before that I'm currently Team Mann on this particular topic. However, I've also said that my conservative position is becoming more untenable by the year. I'm still not quite ready to switch over to Team Hansen, but I have to admit he has taken the lead in the debate...at least for now. Are you Team Mann or Team Hansen?

The fact that the bottom is around 1 W.m-2 is concerning. Some estimates of sensitivity put us at 1 C per W.m-2. That means there could be 1 C of warming still in the pipeline without any additional forcing. Yikes.

It is too early to make any definitive conclusions, but it does look like we could be starting to pull away from the old CMIP3 RCP 4.5 prediction.

Reports of thunder snow/sleet are widespread around the St. Louis metro area now.