Anthony Watts has summed up my problems with claims that climate change is an existential threat in a post entitled “Is Climate Change Real? Short Answer: Yes — But It’s Complicated.” This post reproduces the article with my annotated comments.
I am convinced that implementation of the New York Climate Leadership & Community Protection Act (Climate Act) net-zero mandates will do more harm than good if the future electric system relies only on wind, solar, and energy storage because of reliability and affordability risks. I have followed the Climate Act since it was first proposed, submitted comments on the Climate Act implementation plan, and have written over 500 articles about New York’s net-zero transition. I also am an air pollution meteorologist with bachelor and master of science degrees in meteorology and was a Certified Consulting Meteorologist before I retired with nearly 50 years of experience. The opinions expressed in this article do not reflect the position of any of my previous employers or any other organization I have been associated with, these comments are mine alone.
Overview
The Climate Act established a New York “Net Zero” target (85% reduction in GHG emissions and 15% offset of emissions) by 2050. The Climate Leadership & Community Protection Act Section 1. Legislative findings and declaration, subsection 3 defines the alleged threat and goal: “Action undertaken by New York to reduce greenhouse emissions will have an impact on global greenhouse gas emissions and the rate of climate change.” I have tried to argue against this point many times, but I think Watts has provided a concise well-documented case that the basic premise that New York can have an effect on the rate of climate change is misplaced.
Is Climate Change Real?
Anthony Watts prepared the post addressing this question because he gets asked this a lot. His response to the question shows that New York does not need to rush to comply with the aspirational Climate Act schedule and targets set by politicians during the always rushed and hectic New York budget process. Watts provides a simple primer that makes five key points. Note that all the bold passages in the following quotes were highlighted by Watts.
1. The Basics: Climate Does Change
His first point cuts to the nub of the problem. Climate change is real and is always occurring. That makes it easy for everyone to have an impression that the climate isn’t what it used to be.
First, let’s be clear — climate change is real in the literal sense. The Earth’s climate has been changing for billions of years. We have geological records showing periods that were much warmer (like the Eocene, with crocodiles in the Arctic), and much colder (like the Ice Ages that covered North America in glaciers).
Even more recently, we have the Holocene Climate Optimum, significantly warmer than present day:

Watts explains that there is a nuance to the fact that the climate is changing. Those nuances are being ignored as he notes:
So, yes — the climate changes, and it always has. The debate isn’t about whether it changes, but why, how fast, and how much humans are influencing it today. The debate is also about how accurately we are able to detect temperature change, plus the overreliance on climate models to predict the future rather than actual data.
2. What the “Consensus” Says — and Where It Falls Short
Folks like me who publicly decry the claim of an existential threat must confront the consensus argument he describes.
The mainstream position (IPCC, NOAA, NASA, etc.) holds that recent warming — roughly 1.1°C since the late 1800s — is largely due to increased CO₂ from human activity, mainly fossil fuels.
But here’s the rub: this view is heavily dependent on climate models, which are notoriously uncertain.
The fact that the extreme risks claimed are based on models is frustrating because I know the limitations of model projections and they never get mentioned in the mainstream coverage of climate change. The only thing I would add to his remarks is that he could have included many more issues.
As someone with a meteorology background, I can tell you models struggle with cloud feedbacks, ocean cycles, solar variability, and regional forecasts — all of which are crucial to understanding climate.
When models are run backward, they often fail to replicate past climate variability accurately — like the Medieval Warm Period or the Little Ice Age — unless they’re tuned heavily. That calls into question their reliability for long-term projections.
3. Natural Variability: The Elephant in the Room
As Watts explains, natural variability is not understood well. I think the thing to keep in mind is that this variability is driven in large part by the patterns of the upper air steering currents like the jet stream. The massive flooding due to Helene in western North Carolina was caused by a rare weather pattern that stalled the storm in one place. A similar pattern occurred in 1916 so today’s level of CO2 and warming were not the cause. Unfortunately, we don’t know what caused that pattern or if it was just normal variability. Watts describes the variability of observed warming:
A lot of warming in the 20th century happened before CO₂ rose sharply post-WWII. For example:

- The warming from 1910 to 1940 occurred with much lower CO₂ levels.
- Then there was a cooling trend from the 1940s to 1970s, despite rising CO₂ emissions during that time period.
Clearly, natural factors — like solar cycles, ocean oscillations (PDO, AMO), volcanic activity, and cloud dynamics — are still in play and possibly underestimated in mainstream assessments.
Keep in mind that the consensus says that the recent warming was caused by GHG emissions, but I don’t see any big difference between that warming and the previous one that was “natural”. We know there are natural factors in play but we don’t understand them well enough to be able to discern what the impact of the greenhouse effect is relative to them.
4. The CO₂ Connection: Overstated?
The second complicating factor is that the greenhouse effect is real and increased CO2 in the atmosphere should also increase warming. However, as Watts explains even that fact is conditional on at least one factor rarely mentioned.
CO₂ is a greenhouse gas, no question. But its effect on temperature is logarithmic — meaning, the more CO₂ you add, the less warming you get per unit. The first 100 ppm has the biggest impact, and we’re well past that as seen in the figure below.

Moreover, satellite data from UAH and RSS shows a slower warming trend than surface datasets like HadCRUT or GISS. That discrepancy raises questions about data adjustments, urban heat island effects, and instrument biases.
I addressed a couple of warming trend issues in two recent articles about measuring temperature trends here and here. This primer just touches the surfaces of isues.
5. Are We in a Crisis?
Ultimately the only reason we are being forced to endure the insane transition policies that defy physics, math, and economics is the existential threat. Watts points out problems with that claim.
Even if we accept that humans are influencing climate, the notion that we’re in an “existential crisis” is unproven. Extreme weather trends (hurricanes, tornadoes, droughts) don’t show clear worsening patterns once you account for improved detection and population growth in vulnerable areas such as coastal developments.
The Intergovernmental Panel on Climate Change (IPCC) agrees, suggesting a “low confidence” in many current and future weather events being affected by climate change. The “existential crisis” view is heavily dependent on climate model projections, which are notoriously uncertain and refuted by data.
Sea level is rising — but at a slow, linear pace of about 3 mm/year. That’s about 12 inches per century, similar to what’s been observed since before industrial CO₂ emissions.
Away from the bluster and hype in the real-world evidence is clear that even if there is a potential for massive impacts due to climate change, the pace observed is slow and not accelerating. That means that we have time to consider and modify the politically motivated schedule of the New York Climate Act.
Bottom Line
I cannot conclude this post any better than Anthony Watts did in his bottom line.
Yes, the climate is changing. It always has. The idea that global climate must be unchanging is simply wrongheaded. The real issue is how much of today’s change is due to human activity, how reliable our predictions are, and whether proposed policy responses are justified — or likely to do more harm than good.
At Watts Up With That, we’ve been pointing out for years that this issue is riddled with confirmation bias, model overconfidence, and selective reporting. There is no justification for shutting down economies or reshaping civilization based on the incomplete science of climate change.
So yes, climate change is real, but no, it’s not a crisis.













