JoNova

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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Settled! Global Warming and the pause, caused by changes in cloud cover, not CO2

That’s it: It was 4% cloudier in 1985, then roughly the same after 2000 — that’s the Pause and the Cause

A new paper in Russian, by OM Pokrovsky, shows that global cloud cover decreased markedly from 1986 to 2000. This is a very large decline in terms of the planetary atmosphere. Pokrovsky uses ISCCP satellite data (the “International Satellite Cloud Climatology Project” — a US program). It’s the best cloud data there is. The effects of clouds are so strong that most of the differences between IPCC-favoured-models comes from the assumptions the models make about clouds. Cloud feedbacks are the “largest source of uncertainty”. [IPCC, 2007]

Clouds cover two-thirds of the Earths surface, reflecting around 30% of the total energy from the Sun back to space. A small change in cloud cover can easily warm or cool the planet, like a giant pop-up shade-sail.

This, on its own, explains all the warming that occurred from 1986 – 2000. It explains the pause. We don’t know why clouds decreased, but we know it wasn’t due to CO2, which kept rising relentlessly year after year, and even faster after the turn of the century.

Something else is driving cloud formation, or [...]

It’s a tech-wreck: models now use human moods and fashions as a climate forcing

How many climate marches does it take to stop a storm?

Photo by Vlad Tchompalov

A new climate model includes “social processes” to predict the climate. They expect the fashionality of hybrid cars or solar PVs will help predict the future climate. So serious researchers are now feeding their models with trends in human behaviour. Though there’s no sign climate models may use the million-mile-an-hour solar wind, nor changes to the solar magnetic field that’s bigger than Earths orbit. They’re also not using solar spectral changes, but who cares about the odd quadrillion joules of ultra violet fritzing or not-fritzing our ozone layer? So much better to track twitter trends on solar panels instead.

The fixation on CO2 is so obsessive compulsive it’s practically a science cult. This kind of work puts the psycho in psychology.

Years from now when everyone agrees it was The Sun, historians are going to fish deep from this well of academic obsession:

New global warming model highlights strong impact of social learning

Human behavior influences a wide range of complex systems, including ecosystems, social networks, and the climate. Moreover, these systems impact human behavior, creating a feedback loop. Human behavior is [...]

Climate Models are a Joke

An update on the graph that is death to climate models

Good people of Earth are spending thousands of billions of dollars to prevent a future predicted by models that we know don’t work. The debate is over, climate spending is an unscientific, pagan, theological quest to change the weather. Just another iteration of what Druids and Witchdoctors have been promising for eons. Don’t expect the vested interests that profit from this Golden Climate Gravy Train to tell you this.

The top 23 global coupled climate models don’t understand the climate and can’t predict it. Our CO2 emissions are accelerating, the effect should be amplifying, but millions of weather balloons and satellites that circle the Earth 24 hours a day show unequivocally that the models are wrong.

TROPICAL MID-TROPOSPHERIC TEMPERATURE VARIATIONS MODELS vs OBSERVATIONS5-Year Averages, 1979-2016 – Trend line crosses zero at 1979 for all time series

The Climate Study Group have placed this graph in an advert (why do skeptics have to pay to get graphs like this — a public service — printed?)

Read the whole Climate Reality PDF here.

Acolytes and fellow parasites will say that surface temperatures measured by NASA and Hadley [...]

Latest, belated admission the models were “too hot” is all PR and politics, nothing to do with science

Spot the political PR paper pretending to be science: the global carbon budget just got a whopping — four – times — bigger, but instructions on how to follow the carbon religion are 100% identical.

It’s become too obvious to everyone that the climate models have been complete failures. Thus, the global leeches were facing a crisis as their credibility and motivation drain. So the new paper in Nature Geoscience is just a retweak of the models to produce a number that isn’t so mock-worthy. There is no scientific reason offered, no new understanding of the climate. No one is even pretending that these modelers can explain the way our climate works any better than they did last year when they were utter failures. It’s all a charade. There is no honesty here — if there was, they’d admit the skeptics are years ahead of them.

The new paper is just about “staying the game”, a desperate injection to keep the dying movement alive. All the political messages remain untouched. It’s got everything to do with PR and nothing to do with science.

The numbers change (and nobody ever cared about them anyway) but PR meme is a carbon copy: [...]

Former NASA GISS climate scientist reveals incompetence, junkets, best model called “jungle” of code

Dr Duane Thresher who worked seven years at NASA GISS describes a culture of self serving rent-seekers, mismanagement and incompetence. These are the top experts in the climate science field that we are supposed to accept without questioning. Those who say they are working to “save the planet” care more about their junckets than they do about the data or their “best” model.

NASA GISS’s most advanced climate model is run from the Goddard Space Flight Center (GSFC). Thresher recounts a story from someone on the inside:

“NASA GISS’s climate model — named Model E, an intentional play on the word “muddle” — is called the “jungle” because it is so badly coded.” I know this to be true from my own extensive experience programming it (I tried to fix as much as I could…).

Thresher writes about how the team was happy to take taxpayer funds and spend it on unnecessary conferences which were “loads of fun” while they scrimped and saved on things like data security and incompetent tech staff. Secretaries and mail boys were hired for jobs they were not qualified for. At one point data was lost when exposed plumbing leaked in the computer [...]

CO2 causes cold-hot East-West split climate change in the USA!

Somewhere in the world, a whole town is missing their tea-leaf readers.

The Physics tells us (practical beats us over the head) that more CO2 will mean warmer nights. It is a 97% certified mantra that warm nights are a fingerprint of man-made global warming.*

Well don’t look now, but CO2 causes cold nights too (and get this… on the East Coast).

Extreme-weather winters are becoming more common in US

Recent years have seen a dramatic increase in the simultaneous occurrence of extremely cold winter days in the Eastern United States and extremely warm winter days in the West, according to a Stanford-led study published in Journal of Geophysical Research Atmospheres. Human-caused emissions of greenhouse gases are likely driving this trend, the researchers report.

Used to be that single seasons were “weather” and thirty year trends were “science”– now all they need is a single repeated season and half a country:

“Looking back at temperature data from the past 35 years, we’ve found that in fact 2013-2014 and 2014-2015 did have the biggest difference in winter temperature between the East and West.”

This is pretty freaky — can you imagine how smart these guys must [...]