A science presenter, writer, speaker & former TV host; author of The Skeptic's Handbook (over 200,000 copies distributed & available in 15 languages).



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All the expert climate models are still tuned too high — at double the real warming rate

Here’s the next iconic graph in the climate non-debate.

It’s just another day in the continuing failure of climate models. In 68 simulations the climate experts repeatedly discover how a fantasy Earth was warmed twice as fast as the real Earth has.

The skillless failure of these models is obvious but it works as modern art.

The angry birds of confirmation bias lifted off in 1998 and haven’t landed on anything real for twenty years.

We paid researchers to find a crisis and we got what we paid for:

The latest model predictions versus what really happened. | Roy Spencer UAH

Many thanks to the great legendary Roy Spencer for his exemplary work at

The Black line is the ERSST — The Extended Reconstructed Sea Surface Temperature data (the floating ARGO buoys, Hadley, and other acronyms.)

The models appear to have been retuned lately so that some of the coolest model runs barely include reality. It probably avoids more awkward questions.



9.9 out of 10 based on 78 ratings

#DataGate! First ever audit of global temperature data finds freezing tropical islands, boiling towns, boats on land

What were they thinking?

The fate of the planet is at stake, but the key temperature data set used by climate models contains more than 70 different sorts of problems. Trillions of dollars have been spent because of predictions based on this data – yet even the most baby-basic quality control checks have not been done.

Thanks to Dr John McLean, we see how The IPCC demands for cash rest on freak data, empty fields, Fahrenheit temps recorded as Celsius, mistakes in longitude and latitude, brutal adjustments and even spelling errors.

Why. Why. Why wasn’t this done years ago?

So much for that facade. How can people who care about the climate be so sloppy and amateur with the data?

HadCrut4 Global Temperature, 1850 – 2018.

Absurdity everywhere in Hadley Met Centre data

There are cases of tropical islands recording a monthly average of zero degrees — this is the mean of the daily highs and lows for the month. A spot in Romania spent one whole month averaging minus 45 degrees. One site in Colombia recorded three months of over 80 degrees C. That is so incredibly hot that even the minimums there were […]

It’s “special” science where one Hot Month is the signal, and years of The Pause is just noise.

Click to enlarge


We can always rely on Peter Hannam of the Sydney Morning Herald to accidentally advertise the unscientific stars of the Climate Church.

“Spike in global temperature fuels climate change fears”

It used to be that science was symmetrical — the laws of physics worked every day. You know, thou shalt not create nor destroy energy, it’s one of those unarguable things. But UNSW has a new “special” kind of science where the global temperature can pause for years and billions of quadrillions of joules of energy can disappear and who cares? In politically correct science this is noise. But one hot month, caused by an El Nino and strap yourself in, glue on the Armageddon-helmet. Panic-now, Panic-later, Fear and Hellfire. The Mystical Sign has cometh!

Prof Rahmstorf seems a bit confused about what’s “noise” and what’s “signal”:

“It’s important to take this hot spike as a reminder that this is a really urgent problem” said Professor Rahmstorf, who until last week was also a visiting professorial fellow at the University of NSW. “We are running out of time to avoid a 2-degree world.”

Try and imagine him saying […]

Hottest seasonally adjusted month EVER! Hyperbole runs wild.

Who needs a trend when you can have a hot month?

The news is all over the media — Feb 2016 was a record hottest ever month — and the Global Worriers are saying “Meltdown“, “Planetary Crisis” and “Terrifying Milestone.”

But the Pause is still there. No matter what happens now, the world didn’t warm for 18 years, and that shows the models can’t predict a thing. (Unless they take solar factors into account, which they don’t).

One big El Nino didn’t fix the climate models now. (They can’t predict El Nino’s either).

Nothing that happens after 2015 can change the amount of energy that went missing during the Pause that no mainstream modeler predicted. Remember these models are supposed to be coupled ocean and atmosphere models, but none of them understand what causes shifts in the PDO, or many other natural cycles and currents of the ocean. So with every natural spike up, modelers unscientifically leap in glee, and with the other 99% of the data, they blame internal variability. But a real scientist is scientific every month. Trends, guys, trends. That’s what this debate was supposed to be about. Not spikes. Not noise.

During the last whopper El […]

Hottest Shattering Year since the last one: Five reasons it was not hot, and not relevant

Tell the world, 2015 is the hottest year since 2010.

The fuss made over contested decimal points in highly adjusted datasets of irrelevant factors only shows how unscientific the public debate is. It probably wasn’t the hottest year in the last 150, and even it was, who cares — that doesn’t tell us anything about the cause. (Remember when cause and effect used to matter to a scientist?) Natural forces like the Sun and clouds can cause hot years too. Even if it was “the hottest” in a short noisy segment, the world has been hotter before (and life on Earth thrived) and the climate models are still hopelessly wrong. If CO2 was a big driver of the climate, 2015 should have been a lot hotter.

1. It wasn’t the hottest year. Satellites have better, broader coverage, surveying almost the whole planet (rather than selected car parks, runways, etc. like the surface thermometers). The satellites say that both 1998 and 2010 were hotter. In any case, these kind of piddling noisy differences are just street signs on the road to nowhere — what matters are the long term trends, and the predictions of climate models. (If the models worked, […]

Those policies will cause HOW much cooling exactly? The best case fantasy a mere 0.17C by 2100

Suppose we give billions to the bureaucratic geniuses in Paris. Suppose they are right about how global warming works (though we know they are not). What do we get for all that money?

Combined, all plans, carried out, successful best case, at a cost of hundreds of trillions + : 0.17°C

More realistic more pessimistic case: 0.05°C

If the infra-red reroutes through the atmosphere and climate sensitivity has been overestimated by 5 – 10 fold: 0.02°C

The UN wants us to spend $89 trillion by 2030 to “green up” everything. For that we hope in theory, if we’re lucky to get a reduction of one sixth of a degree 70 years later. Rush, Rush, buy that plan today! Order two, and don’t count the dead.

The real reduction, using the best empirical data, and a corrected basic model, is more likely to be in the order of one thousandth of a degree 9 decades from now.

9.4 out of 10 based on 96 ratings […]

Hottest July in 4000 years? Not even the hottest July since *2014* according to satellites

NOAA has a press release out being picked up around the world. For example, the DailyMail, UK, is saying July was the hottest month since records began in 1880 as heatwaves swept the Earth’s countries and oceans. Other silly tabloids have headlines about this being the hottest July in 4,000 years, as if we have even the remotest idea what the average July global temperature was in the days of Plato.

Better data shows July this year is the hottest since way back in… 2014. It’s not 4,000 years, not 135 years, it’s the hottest July since the last one. We only have 30 years of good climate data: the satellites tell us the pause is real, and last month’s summer temperatures is not a record anything. According to the UAH and RSS global satellites, lower troposphere averages for July 2014 were 0.30C and 0.34C, compared to July 2015 of 0.28C. Even, June 2015 was hotter (UAH, 0.35C; RSS, 0.39C). July 2015 is not even the hottest month since June.

But some journalists will believe anything. Anthony Sharman, sports journalist,, Australia, thinks we know the global temperature of the July that Jesus was born. Who’s a gullible journalist then? […]

A rare sighting of endangered scientific graph in newsprint

We skeptics get excited about unusual things. The Australian published Michael Asten today in the Op-Ed pages, and took the extremely rare step of publishing a scientific graph (!) with a few error bars and everything. Newspapers publish economic graphs all the time, so it’s nice to see the scientific debate getting a bit more sophisticated than just the usual “deniers are evil, government climate scientists speak the word of God” type of stuff. (In the Enlightenment, data was a greater source of authority than any human; how we pine for those days.) The only thing the story should have added was a note that reminds us that the not only was the “hottest” record not beyond the error bars but that it did not occur in satellite measurements. I’m sure a lot of people mistakenly think that NASA might use satellites, but they prefer highly adjusted ground thermometers next to airport tarmac instead.

The headline on that graph could have been “Climate scientists don’t know what caused most of the big moves on this graph”. Some mystery effect caused the warming from 1910-1940. In ClimateScienceTM it is OK to call that “natural variability” and pretend to be 95% sure […]

Gavin Schmidt now admits NASA are only 38% sure 2014 was the hottest year

I said the vaguest scientists in the world lie by omission, and it’s what they don’t say that gives them away. The “hottest ever” press release didn’t tell us how much hotter the hottest year supposedly was, nor how big the error bars were. David Rose of the Daily Mail pinned down Gavin Schmidt of NASA GISS to ask a few questions that bloggers and voters want answered but almost no other journalist seems to want to ask.


Nasa climate scientists: We said 2014 was the warmest year on record… but we’re only 38% sure we were right

Nasa admits this means it is far from certain that 2014 set a record at all

Does that mean 97% of climate experts are 62% sure they are wrong?*

The thing with half-truths is that they generate a glorious fog, but it has no substance. Ask the spin-cloud of a couple of sensible questions and the narrative collapses. This is the kind of analysis that would have stopped the rot 25 years ago if most news outlets had investigative reporters instead of science communicators trained to “raise awareness”. (The media IS the problem). If there was […]

2014, NOAA NASA produce weakest science on hottest fantasy in modern record

The Art of Lying by Omission

Back in the old days, when scientists had standards, they would never get excited over one hot year and certainly not over one meaningless hundredth of a degree.

The NOAA and NASA spinmeisters are parsing their press releases carefully, using vagueness to speak in half-truth-tongues. They utter no outright lie, yet misinform the crowd with lies by omission.

NOAA and NASA don’t say their models still don’t work, that the world was supposed to be a lot warmer and the “pause” continues. Nor do they admit that it has been warmer before many times in history. They don’t say the warming trend started long before we pumped out CO2. They don’t mention how tiny the “record” is, so tiny it could, and probably will, disappear with the next man-made adjustment. They don’t mention that the record depends entirely on which dataset you pick, and better instruments, satellites, show it wasn’t a record. NASA may launch satellites, but they prefer a thermometer in a carpark or beside a runway for measuring temperatures.

All major global datasets, up to date. The pause is clear enough. The lower two lines are from satellites. Jan 2015 | […]