Archive for the ‘Analysis’ Category

The Met-Office has issued a ‘decadal’ climate forecast which runs from 2018 to 2023. Maybe it should be called a ‘semi-decadal forecast’ instead, but we’ll let it pass, as that’s not the most amusing aspect of it by a long chalk.

For starters, there’s the baseline period chosen. 1850-1900. They’ve gone for this so they can scare us with the upper end of the blue prediction envelope exceeding the Dangerous! Global! Warming! politically chosen figure of 1.5C above “pre-industrial”.

Here’s the global measuring station coverage between 1891 and 1920. There was a lot less in 1850.


I thought it would be fun to see how the Met-O forecast is doing after 10 months, so I plotted the latest annually averaged HadCRUt 4 global data using Wood For Trees in red and overlaid it on the Met-O prediction plot:



With about the same minimum Arctic sea ice extent this season as 2008 and 2010, persistent claims of ‘rapid decline’ are looking more than threadbare, and polar bears don’t seem too bothered either, judging by the numbers. Climate scare merchants may have to look elsewhere to try and generate a headline.


We’ve hit the seasonal Arctic sea ice minimum for this year, called this morning by US NSIDC for 19th and 23rd of Septmeber: 4.59 mkm2, the same extent as 2008 and 2010. This is not a “ho-hum” year for polar bears: it means that since 2007, they have triumphed through 10 or 11 years1 with summer ice coverage below 5.0 mkm2 —  levels that in 2007were expected to cause catastrophic declines in numbers.


Summer sea ice below 5.0 mkm2 were not expected to occur until about 2050, according to 2005/2006 sea ice models and polar bear specialists at the US Geological Survey (USGS). Polar bear survival models predicted 2/3 of the world’s polar bears would disappear when ice levels reached this threshold for 8 out of 10 years (Amstrup et al. 2007, 2008; Hunter 2007) but polar bears have been more resilientthan expected (Crockford 2017, 2018; Crockford…

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Did the BBC just say in this report: ‘if the recent warming is unusual’? Whether tree ring analysis can improve predictions, as suggested, is an interesting question but open to debate.

The “longest, continuous tree ring-based diary” is being created by scientists at the University of Cambridge to help map climate change, reports BBC News.

The diary documents climatic conditions going back centuries, using trees from across the world.


The blog post title speaks for itself. Alarmists can’t accept natural variation, so use false logic to try and claim that any weather characteristic which wasn’t exactly like the last few hurricanes must be somehow man-made.


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A sort of post-mortem look at various issues surrounding Hurricane Florence. If pressed for time, ‘the take home point is that convincingly attributing any of this to human caused global warming is very challenging’ – see the summary.

Climate Etc.

by Judith Curry

“Impending massive hurricanes bring the best out of weather twitter and the worst out of climate twitter” – Joseph Maykut

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How constant is the “solar constant?”

Posted: September 19, 2018 by oldbrew in Analysis, data, IPCC, Measurement

Well…it’s complicated. The available data is less than perfect, but the ‘natural variation option’ (so to speak) is still on the table.

Andy May Petrophysicist

The IPCC lowered their estimate of the impact of solar variability on the Earth’s climate from the already low value of 0.12 W/m2 (Watts per square-meter) given in their fourth report (AR4), to a still lower value of 0.05 W/m2 in the 2013 fifth report (AR5), the new value is illustrated in Figure 1. These are long term values, estimated for the 261-year period 1750-2011 and they apply to the “baseline” of the Schwabe ~11-year solar (or sunspot) cycle, which we will simply call the “solar cycle” in this post. The baseline of the solar cycle is the issue since the peaks are known to vary. The Sun’s output (total solar irradiance or “TSI”) is known to vary at all time scales (Kopp 2016), the question is by how much. The magnitude of short-term changes, less than 11 years, in solar output are known relatively accurately, to better…

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Not the actual simulations, but the already fading credibility thereof. What scientific reason is there to rely on their results?

Ross McKitrick and John Christy have an important new paper out in Earth and Space Science, writes Andrew Montford for The GWPF.

This is the latest fusillade in the long battle over whether the climate simulations that lie behind demands for decarbonisation and other political action actually amount to nothing but a hill of beans (as they say on the other side of the pond).


David Eyles: The Quiet Revolution

Posted: September 18, 2018 by tallbloke in Analysis, Brexit, EU Referendum, Politics

village-hallA rarely spotted phenomenon, sometimes acknowledged by one or two of the more astute political pundits, is that the Labour Party has moved away from its core of working-class voters. The leadership has now fully embraced the demands of its middle and upper-middle class hierarchy and has gone full-on Quinoa Marxist.

However, the Labour Party is not alone, because the Conservative Party has also moved in the same direction, albeit not quite so far. The leadership indulges in wholesale political correctness. It then signals its virtue by casual obeisance to whichever favoured minority group is flavour of the week. Accordingly, the Tories have also stepped away from their voters – most of whom are utterly bored with this infantile nonsense.

There has been some floundering recognition that the sheer nastiness of the Labour Left is causing some Labour MPs to panic and talk of forming a new centrist party. But that will only occupy the same ground that the Tories already occupy, by virtue of their own leftward manoeuvrings. Talk of a Tony Blair led centre-left party, perhaps embracing the Liberal Democrats, would be a move into an already overcrowded marketplace with decreasing numbers of voters to whom this will appeal. Tony Blair is the most toxic brand in British politics.


Image credit: BBC

Warren Meyer writes: ‘The implicit plea in this post goes beyond climate — if you are claiming a trend, show me the trend data. I can be convinced […] but so often the actual data never matches the arm-waving in these media sources.’

This article in something called Inside Climate News seems to be typical of many I have seen this year.

Because we have had much attention in the media on heat waves this year, there must be an upward trend in heat waves and that is a warning signal that man-made global warming is destroying the planet.

Typical of these articles are a couple of features


dr-tim-ball-icTim Ball, head of CLEXIT Canada writes:

 I am proud to be the Canadian representative for the climate exit (CLEXIT) movement. Canada has more culpability than any other nation in creating and perpetuating the deception. It is not hyperbole to say that Canada was central to creating and mobilizing the false claim of anthropogenic global warming (AGW). The idea that humans were causing runaway global warming originated with the Club of Rome. Formed in 1968 by David Rockefeller, it expanded on the Malthusian idea that the population would outgrow the food supply. The expansion was that world population would outgrow all resources. They made three major assumptions.

  • The demand for resources would increase every year because the population is increasing every year.
  • Developed nations increase the demand by using resources at a much greater rate than developing nations.
  • More nations are changing from developing to developed and accelerating demand.

They produced a few books and reports to substantiate the claims about population and demand. Paul Ehrlich’s 1968 The Population Bomb garnered enormous attention. Less well read but still influential was the 1972 book Limits to Growth by Meadows et al. It used a very primitive computer program that started with two components. The known volume of a resource and the current rate of use. Then, using a simple linear trend, it projected the point at which the resource would run out. It also projected the point at which the volume of the resource use peaked. Another book published in 1977, Ecoscience, Population, Resources, and Environment, influenced policy for a long time because of Paul Ehrlich’s co-author John Holdren. He later became Science Advisor in the Obama White House.


Volcanic eruption

Interesting results from this research into where and how volcanoes might fit into the oceans/climate picture.

Volcanic eruptions are among the most important natural causes of climate change, playing a leading role over the past millennium, says

Injections of sulfate aerosols into the lower stratosphere reduce the incoming solar radiation, in turn cooling the surface.

As a natural external forcing to the Earth’s climate system, the impact of volcanic aerosols on the climate has been of great concern to the scientific society and the public.

In recent years, scientists have found that there is a relationship between volcanic eruptions and the El Niño-Southern Oscillation (ENSO) based on reconstructions and model simulations, which is manifested in increased/decreased sea surface temperature (SST) gradient over the equatorial Pacific.


The following calculations and graphics are based on information on worldwide CO2 emission levels published by BP in June 2018 for the period from 1965 up until the end of 2017.

The data can be summarised as follows:

Screen Shot 2018-06-22 at 12.16.18.png

Some initial points arising from the BP data:

  • Having been relatively stable for the last 7 years global CO2 emissions grew by ~1.3% in 2017.  This growth was in spite of all the international “commitments” arising from the Paris Climate Agreement.
  • The contrast between the developed and developing worlds remains stark:
    • developing world emissions overtook Developed world CO2 emissions in 2005 and they have been escalating since.
    • in terms of their history and the likely prognosis of their CO2 emissions.
  • Since 1990 CO2 emissions from the developed world have decreased, whereas the developing world has shown a fourfold increase since 1980.  CO2 emissions in the developing world are accelerating as the quality of the lives for people in the underdeveloped and developing world improves.  At least 1.12 billion people in the developing world still have no access to reliable mains electricity.
  • As a result CO2 emissions / head for India and the rest of the world’s Underdeveloped nations (~53% of the world population) remains very low at ~1.7 tonnes / head, (~40% of the Global average) meaning that the state of serious human deprivation and underdevelopment is continuing.
  • By 2017 CO2 emissions from the developing world were some 65% of the global emissions.
  • India and the underdeveloped world will certainly be continuing to promote their own development to attain comparable development levels to their other peer group developing nations.
  • India’s growth in CO2 emissions 2016 – 2017 was by a further 4.1%
  • China, (considered here as a “Developing Nation”),  showed CO2 emission growth of 1.4% in 2017.
  • China’s CO2 emissions / head for its population of some 1.4 billion has now approached the average emissions / head in Europe.
  • China’s CO2 emissions / head was already higher than most of the EU Nations other than Germany.

Even as long ago as October 2010 Professor Richard Muller made the dilemma for all those who hope to control global warming by reducing CO2 emissions, particularly by means of CO2 reductions from Western Nations, clear:  in essence he said:

“the Developing World is not joining-in with CO2 emission reductions nor does it have any intention of doing so.  The failure of worldwide action negates the unilateral action of any individual Western Nation”.


Solar scientist and part-time NSA operative Leif Svalgaard has produced a prediction for solar cycle 25, four years after Rick Salvador published his 86 year prediction in the swiftly censored “Pattern Recognition in Physics”.

It appears at the end of a 30 page pdf document he has published on his website. This is an interesting document, with a wealth of gayly coloured butterfly diagrams, polar field reconstructions and more. Leif self deprecatingly follows his Prediction title with (At last) not only because it comes at the end of 30 pages of preamble, but because he’s acutely aware of his method’s limitations.



Despite warming due to atmospheric trace gases being a racing certainty according to the IPCC and like-minded theorists, evidence of it is getting ever harder to find.

Science Matters

Presently sea surface temperatures (SST) are the best available indicator of heat content gained or lost from earth’s climate system.  Enthalpy is the thermodynamic term for total heat content in a system, and humidity differences in air parcels affect enthalpy.  Measuring water temperature directly avoids distorted impressions from air measurements.  In addition, ocean covers 71% of the planet surface and thus dominates surface temperature estimates.  Eventually we will likely have reliable means of recording water temperatures at depth.

Recently, Dr. Ole Humlum reported from his research that air temperatures lag 2-3 months behind changes in SST.  He also observed that changes in CO2 atmospheric concentrations lag behind SST by 11-12 months.  This latter point is addressed in a previous post Who to Blame for Rising CO2?

The May update to HadSST3 will appear later this month, but in the meantime we can look at lower troposphere temperatures (TLT) from UAHv6…

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Who to Blame for Rising CO2?

Posted: April 14, 2018 by oldbrew in Analysis, atmosphere

As Dr Ed Berry says: ‘How can human carbon dioxide, which is only 5 percent of natural carbon dioxide, add 30 percent to the level of atmospheric carbon dioxide? It can’t.’

Science Matters

Source :NOAA

Blaming global warming on humans comes down to two assertions:

Rising CO2 in the atmosphere causes earth’s surface temperature to rise.

Humans burning fossil fuels cause rising atmospheric CO2.

For this post I will not address the first premise, instead refer the reader to a previous article referencing Fred Singer. He noted that greenhouse gas theory presumes surface warming arises because heat is forced to escape at a higher, colder altitude. In fact, temperatures in the tropopause do not change with altitude (“pause”), and in the stratosphere temperatures increase with altitude. That post also includes the “meat” of the brief submitted to Judge Alsup’s court by Happer, Koonin and Lindzen, which questions CO2 driving global warming in the face of other more powerful factors. See Courtroom Climate Science

The focus in this piece is the claim that fossil fuel emissions drive observed rising CO2 concentrations. IPCC consensus scientists…

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This post is concerned with the two main forms of UK Weather Dependent Renewable Energy in the UK, Wind Power, (Onshore and Offshore), and on grid Photovoltaic Solar Power.  In the UK these amount to ~75% of all installed Weather Dependent Renewable Energy.  The other Renewable energy inputs are traditional Hydro power ~8% and the remainder are other sources such as biomass, waste and landfill gas amounting to ~17%.

The capacity percentage, or load factor, of any power generating installation is calculated as the actual electrical output achieved annually divided by the nominal maximum Nameplate output.  This article uses the real measures of capacity reported in up to date time series data of UK Renewable installations.  It thus provides reasonably correct comparisons of the efficacy of Weather Dependent Renewables as is reported annually by the Renewable Energy Foundation in the UK.

ClimategateFictionI ran across this interesting exchange recently. In it, James Annan, one of the IPCC authors who got Pattern Recognition in Physics shut down after we published our findings on the solar-planetary theory in it because he thought it was wrong, doesn’t seem as bothered to deal with errors by his fellow oceanographer Syd Levitus. Not even when it’s a whopper that has been costing the taxpayer billions due to the climate! panic! James and his colleagues have promoted for years.

James Annan did eventually write a short letter to the journal, but it went unpublished. The Levitus papers were never corrected, though later IPCC reports show a figure for 1955-96 closer to 13×10^22J than the 18×10^22J Levitus et al reported. The increase was actually caused by the reduction in cloud cover letting more sunshine through, as measured by the ISCCP. The latest graphs have also ‘disappeared’ the fall in OHC between 2003-9 measured by ARGO buoys and replaced it with a rise.



I was trained as an engineer and then did a degree in the History and philosophy of science.

I know how to calculate forces, I understand thermodynamics and radiative theory and I don’t ignore data inimical to any hypothesis.

After thirty years of monitoring and appraising the data, the global warming hypothesis and working out what really causes climatic change I’ve concluded that it ain’t CO2. The real causes of climatic change at the planetary scale are the enormous forces transferring energy between solar system bodies.

Jupiter and Saturn between them hold over 85% of the angular momentum of the system. Venus has, within an order of magnitude, the same gravitational force on the Earth-Moon system as Jupiter. The two of them have shaped the orbit of our Moon, whose tidal forces have a profound effect on the overturning circulation of Earth’s oceans, which contain 1000 times more heat than the atmosphere of which CO2 comprises 0.04%.


Exoplanet – NASA impression

YZ Ceti is a recently discovered star with three known planets (b,c and d) orbiting very close to it. Although some types of mean motion resonance, or near resonance, are quite common e.g. 2:1 or 3:2 conjunction ratios, this one is a bit different.

The orbit periods in days are:
YZ Ceti b = 1.96876 d
YZ Ceti c = 3.06008 d
YZ Ceti d = 4.65627 d

This gives these conjunction periods:
c-d = 8.9266052 d
b-c = 5.5204368 d
b-d = 3.4109931 d
(Note the first two digits on each line.)

Nearest matching period:
34 c-d = 303.50457 d
55 b-c = 303.62403 d
89 b-d = 303.57838 d

34,55 and 89 are Fibonacci numbers.
Therefore the conjunction ratios are linked to the golden ratio (Phi).

Phi = 1.618034
(c-d) / (b-c) = 1.6170106
(b-c) / (b-d) = 1.618425

Data source: