Renewables are useless: The Evidence is Overwhelming

Watts Up With That?


Guest essay by Eric Worrall

Al Gore has a problem. He seems to want people to believe that only climate skeptics oppose renewables. The truth is, a small but growing number of prominent greens, openly acknowledge that renewables in their current form are not a scalable replacement for fossil fuels.

In Al Gore’s announcement of a climate witch hunt, titled “AGs United for Clean Power”, Al Gore said the following;

I really believe that years from now, this convening by attorney general Eric Schneiderman and his colleagues today, may well be looked back upon as a real turning point, in the effort to hold to account those commercial interests that have been, according to the best available evidence, deceiving the American people, communicating in a fraudulent way, both about the reality of the climate crisis and the dangers it poses to all of us, and committing fraud in their…

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Objective Bayesian parameter estimation: Incorporating prior information

Climate Audit

A guest article by Nic Lewis


In a recent article I discussed Bayesian parameter inference in the context of radiocarbon dating. I compared Subjective Bayesian methodology based on a known probability distribution, from which one or more values were drawn at random, with an Objective Bayesian approach using a noninformative prior that produced results depending only on the data and the assumed statistical model. Here, I explain my proposals for incorporating, using an Objective Bayesian approach, evidence-based probabilistic prior information about of a fixed but unknown parameter taking continuous values. I am talking here about information pertaining to the particular parameter value involved, derived from observational evidence pertaining to that value. I am not concerned with the case where the parameter value has been drawn at random from a known actual probability distribution, that being an unusual case in most areas of physics. Even when evidence-based probabilistic prior information…

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Marvel et al.: GISS did omit land use forcing

Climate Audit

A guest article by Nic Lewis

I reported in a previous post, here, a number of serious problems that I had identified in Marvel et al. (2015): Implications for climate sensitivity from the response to individual forcings. This Nature Climate Change paper concluded, based purely on simulations by the GISS-E2-R climate model, that estimates of the transient climate response (TCR) and equilibrium climate sensitivity (ECS) based on observations over the historical period (~1850 to recent times) were biased low.

I followed up my first article with an update that concentrated on land use change (LU) forcing. Inter alia, I presented regression results that strongly suggested the Historical simulation forcing (iRF) time series used in Marvel et al. omitted LU forcing. Gavin Schmidt of GISS responded on RealClimate, writing:

“Lewis in subsequent comments has claimed without evidence that land use was not properly included in our historical runs…. These…

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NASA Relativistic Interstellar Laser Launcher: We could do it NOW, for the cost of the NASA Climate Budget

Watts Up With That?

Figure 9 from "A Roadmap to Interstellar Flight" Figure 9 from “A Roadmap to Interstellar Flight”

Guest essay by Eric Worrall

An American scientist has made a remarkable conceptual breakthrough, a design for a non nuclear relativistic launcher, capable of accelerating thousands of deep space probes per year to 0.25C; fast enough to reach the nearest stars in 15 years. The system is extremely scalable – you could start with a small, low cost proof of concept launcher, and work up to bigger devices, capable of launching substantial probes into interstellar space. The system also has a practical alternative use – the full size version is powerful enough to deflect dangerous asteroids into safer orbits. The design uses mostly off the shelf industrial laser and optical technology.

The abstract of the study;

In the nearly 60 years of spaceflight we have accomplished wonderful feats of exploration and shown the incredible spirit of the human drive to explore and…

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Climate variations analyzed 5 million years back in time show repeating fractal patterns

Watts Up With That?


Peter Ditlevsen's calculations show that you can view the climate as fractals, that is, patterns or structures that repeat in smaller and smaller versions indefinitely. The formula is: Fq(s)~sHq .(Credit: Maria Lemming) Peter Ditlevsen’s calculations show that you can view the climate as fractals, that is, patterns or structures that repeat in smaller and smaller versions indefinitely. The formula is: Fq(s)~sHq .(Credit: Maria Lemming)

When we talk about climate change today, we have to look at what the climate was previously like in order to recognise the natural variations and to be able to distinguish them from the human-induced changes. Researchers from the Niels Bohr Institute have analysed the natural climate variations over the last 12,000 years, during which we have had a warm interglacial period and they have looked back 5 million years to see the major features of the Earth’s climate. The research shows that not only is the weather chaotic, but the Earth’s climate is chaotic and can be difficult to predict. The results are published in the scientific journal, Nature…

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The IPCC has been Deceiving the Public about the Carbon Cycle from the Start

Watts Up With That?

Guest essay by Ari Halperin

Many people hold the opinion that the early full reports of the IPCC Working Group I were scientifically wholesome, at least for some time. This might be true for some parts of the reports, but their treatment of the carbon cycle was fraudulent from the start, i.e., from the IPCC First Assessment Report (FAR, 1990).

The claim that man-released CO2 stays in the atmosphere for hundreds of years was necessary for the alarmist case. It was required to justify the notion of “commitment” to the temperature rise that might happen few hundred years in the future according to the alarmist computer models. It allowed to exaggerate future CO2 concentrations, and to demand premature action (a typical high pressure selling tactic – act now, regret later). And IPCC pulled out all the stops to justify such claims. It tried to create the impression that…

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Use of Fear to Silence Climate Skeptics Is An Assault On Reason

Watts Up With That?

Guest opinion: Dr. Tim Ball


Fear is the most powerful enemy of reason. Both fear and reasoning are essential to human survival, but the relationship between them is unbalanced. Reason may sometimes dissipate fear, but fear frequently shuts down reason. As Edmund Burke wrote in England 20 years before the American Revolution,” no passion so effectually robs the mind of all its powers of acting and reasoning past fear.”

Fear is aided and abetted by exaggeration, distortion, and falsehoods. Sadly, these exploitations litter history as people sought to control others and push a political or religious agenda. There appears to be a difference today as Farhad Manjoo identified in his book “True Enough: Learning to live in a Post-Fact Society”:

Facts no longer matter. We simply decide how we want to see the world and then go out and find experts and evidence to back our beliefs.


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