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• extensive propaganda to warn people and politicians
• more research for a better understanding
• an international body to advice governments, the Inter-governmental Panel on Climate Change (IPCC)

Maurice Strong: "We may get to the point where the only way of saving the world will be for industrial civilization to collapse"

Richard Benedick US deputy assistant secretary of state: "A global warming treaty must be implemented even if there is no scientific evidence to back the greenhouse effect"

Timothy Wirth, US undersecretary of state: "We have got to ride the global warming issue. Even if the theory of global warming is wrong, we will be doing the right thing in terms of economic policy."

Sir David King, former science advisor of the British government: “global warming is a greater threat to humanity than terrorism”

The Public and Politicians suddenly woke up to the biggest scientific scandal of all times, which will change the IPCC and climate science forever. Suddenly emissions reduction and emissions trading were no longer 'on the agenda', and at the time of writing (2010), all IPCC recommendations are on hold indefinitely. Finally some common sense is percolating through.

Even so, AR4 came up with some extraordinary claims:

• Warming of the climate system is unequivocal, as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice and rising global average sea level. {WGI 3.9, SPM}
• Many natural systems, on all continents and in some oceans, are being affected by regional climate changes. Observed changes in many physical and biological systems are consistent with warming. As a result of the uptake of anthropogenic CO2 since 1750, the acidity of the surface ocean has increased. {WGI 5.4, WGII 1.3}
• Global total annual anthropogenic GHG emissions, weighted by their 100-year GWPs, have grown by 70% between 1970 and 2004. As a result of anthropogenic emissions, atmospheric concentrations of N2O now far exceed pre-industrial values spanning many thousands of years, and those of CH4 and CO2 now far exceed the natural range over the last 650,000 years. {WGI SPM; WGIII 1.3}
• Most of the global average warming over the past 50 years is very likely due to anthropogenic GHG increases and it is likely that there is a discernible human-induced warming averaged over each continent (except Antarctica). {WGI 9.4, SPM}
• Anthropogenic warming over the last three decades has likely had a discernible influence at the global scale on observed changes in many physical and biological systems. {WGII 1.4, SPM}

Extraordinary claims are:

• pre-industrial atmospheric CO2 was lower than today
• atmospheric CO2 has steadily risen from its pre-industrial level to today's level, and is worrisome
• Man's burning of fossil fuel is causing an increase in atmospheric CO2 level
• atmospheric CO2 must have a long residence time (lifetime)
• atmospheric temperatures are increasing and unprecedented
• this is due to Man's burning of fossil fuel and other activities.
• ocean levels are rising, due to fossil fuel burning.

Important points:

• the IPCC and its scientific process are seriously in limbo.
• a massive scientific scandal has been exposed, involving fraud, corruption of data, bullying, hiding data and procedures, unwillingness to respond to Official Information Act requests, and much more. [1]
• forget the IPCC with its artificial 'projections' and pay attention to real observations and read the alternative Summary for Policy Makers (SPM) which raises many red flags.

• Thermometer measurements show that Earth’s average surface temperature has risen substantially over the past century, and especially over the last three decades.
• These data are corroborated by a variety of independent observations showing warming in other parts of the Earth system, including the oceans, the lower atmosphere, and ice-covered regions.
• Most of the recent warming can be attributed to fossil fuel burning and other human activities that release carbon dioxide and other heat-  trapping greenhouse gases into the atmosphere.
• Human activities have also resulted in an increase in small particles in the atmosphere, which on average tend to have a cooling effect, but this cooling is not strong enough to offset the warming associated with greenhouse gas increases.
• Changes in solar radiation and volcanic activity can also influence climate, but observations show that they cannot explain the recent warming trend.
• Natural climate variability leads to year-to-year and decade-to-decade fluctuations in temperature and other climate variables as well as significant regional differences.
• Human-caused climate changes and impacts will continue for many decades and in some cases for many centuries. The magnitude of climate change and the severity of its impacts will depend on the actions that human societies take to respond to these risks

[1] http://assassinationscience.com/climategate/  extensive Climategate analysis by John P. Costella. Important to understand the magnitude of malfeasance.
[2] www.climatebasics.com debunking the whole gamut of AGW.
[3] Alternative Summary for Policy Makers by Joseph D'Aleo and Anthony Watts, January 2010. A damning critique of the temperature datasets held by NCDC and NASA GISS, CRU, on which the IPCC bases its findings. The alternative SPM raises many red flags. Read now.
[4] http://scienceandpublicpolicy.org/images/stories/papers/originals/surface_temp.pdf - Joseph D’Aleo and Anthony Watts (2010): Surface temperature records: policy-driven deception? (200 pages) "..so much fiddling and dishonesty have been going on that it is impossible to say whether warming has occurred at all". Surface temperature recordings are in a terrible mess. Important read.
[5] Paulo N. Correa, Alexandra N. Correa (2008): Global warming: an official pseudo-science.  http://www.aetherometry.com/publications/direct/Global_Warming.pdf. A scathing hard-hitting scientific critique by insiders, long before Climategate. An important eye-opener and look behind the scenes, but read with care.

The report consists of four parts:

• Summary for policy makers: relies on all other information. It focuses on 'projections' based on 'scenarios' of fossil fuel use.
• Work group 1 (WG1): "The Physical Science Basis" . It focuses on inputs and outputs of computer climate models.
• Work group 2 (WG2): "Impacts, Adaptation and Vulnerability". It is based on the findings of WG1, applied to the world we live in: climate change, rising seas, problematic weather, and much more.
• Work group 3 (WG3): "Mitigation of Climate Change". It is based on the findings of WG1 and WG2.
• Synthesis Report: is based on all of the above.

Then it defines the only influences on our climate system as 'radiative forcings', 'a measure of how the energy balance of the Earth-atmosphere system is influenced . . .' Thus the filtering effect of CO2 on a small part of the outgoing longwave radiation becomes identical to an increase in incoming short wave sunlight, expressed as a radiation (energy, not a filter) in W/m2, or as a temperature increase for a doubling in CO2 (300 to 600 ppm). One does not need computer models to predict what will happen. But global circulation models can now predict where it will happen and what will happen in the future. Here is their list of assumptions, delicately tuned to give the desired results:
 
 

See how totally dissimilar factors like filters, transporters and reflectors, are all heaped together as if they were incoming sunlight (inputs= forcings= energy). But various investigators disagree:
 

Miskolczi may be the only one who has it right, because not only the radiation balance applies but also the thermal energy balance, such that all greenhouse gases work together. If one increases, others decrease and the universal greenhouse gas is water vapour, which rains out if some other greenhouse gas takes its place. The total energy balance (not radiative balance) remains the same. Earth's atmosphere is maintained at a nearly saturated greenhouse effect, such that outward radiation has no effect but clouds have [2]. Thus climate sensitivity to CO2 is negligible, if CO2 had any effect at all. The same for any other greenhouse gas including water vapour. Note that Miskolczi neglects heat conduction and convection.

Previous historical estimates for climate sensitivity: 5.5= Arrhenius 1896; 3.5= Plass 1956; 3.2= Phillips 1965; 3.0= Charney 1972; 1.2 =Hansen-Houghton 2001. A downward trend also seen in successive IPCC reports.

These graphs show how the IPCC proceeded from its first to its fourth assessment report. First assessments were more alarmist (green) than the third one (blue), but these projected further in the future. From the projections one can see that there is practically no difference between high and low emissions scenarios. The yellow 'commitment' curve implies an almost close-down of society. In the meantime temperatures have declined from a high in 1998 (in the graph labelled 'observed'), stressing that there is something seriously wrong with the IPCC projections. So where are the weaknesses in the IPCC procedure? Acccording to their own words:

Key uncertainties (IPCC):

• Climate data coverage remains limited in some regions and there is a notable lack of geographic balance in data and literature on observed changes in natural and managed systems, with marked scarcity in developing countries. {WGI SPM; WGII 1.3, SPM}
• Analysing and monitoring changes in extreme events, including drought, tropical cyclones, extreme temperatures and the frequency and intensity of precipitation, is more difficult than for climatic averages as longer data time-series of higher spatial and temporal resolutions are required. {WGI 3.8, SPM}
• Effects of climate changes on human and some natural systems are difficult to detect due to adaptation and non-climatic drivers. {WGII 1.3}
• Difficulties remain in reliably simulating and attributing observed temperature changes to natural or human causes at smaller than continental scales. At these smaller scales, factors such as land-use change and pollution also complicate the detection of anthropogenic warming influence on physical and biological systems. {WGI 8.3, 9.4, SPM; WGII 1.4, SPM}
• The magnitude of CO2 emissions from land-use change and CH4 emissions from individual sources remain as key uncertainties. {WGI 2.3, 7.3, 7.4; WGIII 1.3, TS.14}

But what is really wrong, is totally ignored and kept from the public:

• all predictions are based on computer models, and their limitations are not acknowledged (see computer models below).
• the models are circulation models (fluid dynamics) and not atmospheric models.
• failed model projections are not acknowledged: the 1980-1990 models predicted 20th century warming 1.6-3.7 ºC; Actual 0.6ºC and now cooling by even more. Much of the warming is still due to the urban heat island effect and corrupted data as well.
• the whole edifice rests on a hockey stick curve for CO2 and one for temperature, both fraudulently obtained (see hockey sticks below).
• the CO2 hockey stick rests on a single ice core, ignoring centuries of chemical CO2 measurements.
• only anthropogenic causes are considered (fuel gases, gases from living, gases from industry, land use), because "no other explanations could be found"
• a positive feedback fudge factor is invented to make CO2 seem worse than factual.
• none of the radiative forcings have been proved. They are just assumptions.
• the external effects from outside the solar system are ignored, even though these correlate well with measured facts.
• the consequences of variations in solar radiation and solar wind have been pooh-poohed.
• they ignored warming seen on other planets of our solar system and the moon.
• the CO2 absorption by terrestrial plants has been assumed to be constant, whereas plants grow faster in higher CO2 concentrations.
• the effect of water vapour has been down-played, "because humans do not alter it".
• the huge cost from the 'commitment' option is underestimated.
• the beneficial effect of mitigation is overestimated. Computer model projections show that full implementation of the Kyoto Protocol may result in temperature reduction of an undetectable 0.06 Celsius by 2050 at a cost of about US$1,000,000,000,000. The 'full commitment' option would cost that much every year.
• no contingency is made for global cooling, its effects and its mitigation, whereas cooling is much worse for society and environment than warming, and is equally likely.
• no mention is made of the beneficial effects of CO2: better plant growth, more food, more area for agriculture, less water required.

The massive US government climate change research gravy train alone totaled some $9 billion in grants during 2009.

Important points

• the IPCC is an institution where politics comes first, science second and truth last.
• the IPCC reports are extremely biased and unbalanced. Benefit from warmth and CO2 are not mentioned.
• evidence for their claims is flimsy or non-existent.
• their computer models are based on assumptions.
• the science is far from settled. There are too many scientific conflicts.
• climate is always changing.
• the magnitude of the climate is severely underestimated, thinking that mitigation is possible.
• the world is ill prepared for cooling.

The sheer complexity of the climate system The diagram above from Kellogg (1982) and Smith (1985) shows some of the complexity of the climate system, without even mentioning the influences of sunspots and cosmic radiation. Neither does it show the influences of human activity. Practically none of this complexity has been programmed into the IPCC circulation models, and yet the world has now for over 20 years paid paramount importance to their predictions.

[1] Fraser Institute's Independent Summary For Policy Makers. http://www.fraserinstitute.org/Commerce.Web/product_files/Independent%20Summary5.pdf.
[2] Ferenc M. Miskolczi (2008): The saturated greenhouse effect. http://www.friendsofscience.org/assets/documents/The_Saturated_Greenhouse_Effect.htm

Hockey sticks In its First Assessment Report, the IPCC showed the bottom graph as the historical record for the past thousand years (in Europe), but in its Third Assessment Report (TAR 2001), the above Hockey Stick appeared, first published by Mann, Bradley and Hughes in 1998 (MBH98). It showed more dramatic warming in the last decade, hid the decline of the Little Ice Age and other periods of cold, and the Medieval Warm Period that saw Europe flourish. It claimed the 1990s as the warmest period in past 2 millennia. For a more detailed graph of temperature changes in the past two millennia, and what happened, click globaltemp4000yr.gif.

In one diagram several hockey sticks are shown, as they changed somewhat over time. The black curve is that published by Mann et al. 1998, with the wrong statistical technique, leaving inconvenient data out, mixing tree ring data with instrumental data and so on [1]. The blue curve is McKitrick & McIntyre's correction for the same data, restoring the existence of the Medieval Warm Period. Finally the green hockey stick appeared in the IPCC AR4, spliced onto part of the instrumental record, leaving an inconvenient bit off. The green dashed curve represents Briffa's 'divergence' shown in many tree ring records, but conveniently left out by Mann et al. Notice the many manipulations here, some cheating and also the vastly extended vertical scale.

The IPCC argues that there was little natural climate change over the last 1000 years, so that the temperature change of recent times (red curve) is unusual and likely caused by human activities. A senior IPCC researcher said in an email "We have to get rid of the Medieval Warm Period" .

Christopher Monckton says "They did this by giving one technique, measurement of tree-rings from bristlecone pines, 390 times more weighting than other techniques but didn't disclose this. Tree-rings are wider in warmer years, but pine tree rings are also wider when there's more carbon dioxide in the air: it's plant food. This carbon dioxide fertilization distorts the calculations. They said they had included 24 data sets going back to 1400. Without saying so, they left out the set showing the medieval warm period, tucking it into a folder marked "Censored Data". They used a computer model to draw the graph from the data, but two Canadians [Ross McKitrick and Stephen McIntyre] later found that the model almost always drew hockey-sticks even if they fed in random, electronic "red noise" because it used a faulty algorithm."  The MBH 1998 report was never properly peer reviewed before the IPCC used it in their publications."

McKitrick and McIntyre say in their paper "the dataset used to make this construction contained collation errors, unjustified truncation or extrapolation of source data, obsolete data, incorrect principal component calculations, geographical mislocations and other serious defects. These errors and defects substantially affect the temperature index. The major finding is that the values in the early 15th century exceed any values in the 20th century. The particular “hockey stick” shape derived in the MBH98 proxy construction – a temperature index that decreases slightly between the early 15th century and early 20th century and then increases dramatically up to 1980 — is primarily an artefact of poor data handling, obsolete data and incorrect calculation of principal components."

McIntyre and Ross McKitrick, showed that MBH98 was a sloppy, poorly documented paper riddled with simple mistakes, unjustified assumptions, collation errors and incorrect methodology. Data, for instance reported to be from near Boston, Massachusetts actually came from Paris. Central England Temperature data was truncated eliminating its coldest period. Principle component analysis (PCA) had been done incorrectly. Drs Mann, Bradley and Hughes published a terse reply on the Internet rejecting out of hand the criticisms of MM03 and not admitting to a single error. Inappropriate Bristlecone/Foxtail “strip-bark” proxies were used.

IPCC 2001 TAR on the hockey stick: “New analyses of proxy data for the Northern Hemisphere indicate that the increase in temperature in the 20th century is likely to have been the largest of any century during the past 1,000 years. It is also likely that, in the Northern Hemisphere, the 1990s was the warmest decade and 1998 the warmest year”
 
 

An example of temperature 'adjustments' from Australia The graph here shows temperature measurements as they occurred (raw data in blue) and adjusted by the Bureau of Meteorology in red. The black curve shows the timing and size of the adjustments (right-hand scale). No reasons have been given. It is known that temperatures should be adjusted for the Urban Heat Island effect, and thus downward, not upward as has been done here and in practically all 'conveniently' adjusted data sets worldwide. So a decidedly downward slope over more than a century of data, has been turned into an upward slope beginning in 1940 in order to provide the hockey stick so eagerly needed. In many other cases, past history before 1940 was even adjusted downward to achieve the desired hockey stick appearance. These and many other occurrences of fraud have made instrumental temperature records entirely unreliable.

What really happened was the following:

• there exists a true fear that global warming is caused by increased levels of CO2, already since 1938, but proof eludes. A catastrophic 'tipping point' is feared most of all. (Arrhenius, Callendar, Revelle and popularised by Carl Sagan's books))
• human emissions of CO2 look like a hockey stick, thus the situation may get worse quickly. (exponential growth since 1900)
• accurate measurements at several places (Mauna Loa) show an unwavering increase from 1960 on. (The Keeling curve)
• if this is caused by human CO2, then there must be a starting level before the industrial age, turning the Mauna Loa data into a hockey stick, resembling the hockey stick of fossil fuel. ('begins' at 280ppm)
• this was found in the Siple and Law Dome ice cores, even though they needed to be 'corrected'. The Siple Dome data also goes back much further in time, past last ice age. (dissected in ocean acidification)
• now a temperature hockey stick was needed, and MBH98 obliged fraudulently.
• the Medieval Warm Period and the Little Ice Age disappeared conveniently, giving the 1990s an "unprecedented highest ever temperature". (the real past looks different globaltemp4000yr.gif)
• the correlation between human emissions, and the temperature and CO2 hockey sticks was now perfect. (see correlation below)
• computer models could now confidently project the future from any point in the past. (follow the hockey stick)
• projections then became sufficiently scary (catastrophic) to jolt the public into action. (hockey sticks are scary)

The fossil fuel emissions hockey stick Our use of fossil fuels has sky-rocketed since the beginning of the industrial revolution which began in 1850 with the steam engine. There has been a pause during the Great Depression and World War 2 after which it really took off. The graphs show how coal has been replaced by oil, and later oil by natural gas. Their combined carbondioxide has entered the atmosphere but also left it to a surprising degree. Note that the CO2 from cement production is rather small. Now extend the graph on its left to the year 1400, and the black curve very much resembles a hockey stick.

CO2 and temperature We know anthropogenic CO2 emissions quite precisely because the amounts of coal, oil and gas exploited have been accounted for (blue curve). But when it comes to CO2 concentrations in air, we only have the instrumental Keeling curve from Mauna Loa, since 1960 (the fat right-hand part of the red curve). Its leftmost part was derived from air bubbles in ice cores, and is suspect. However, the two parts together make CO2 in air look as if it was produced by anthropogenic CO2. The relationship between CO2 and temperature, however, is not so clear, particularly when the downward trend after 2000 is considered (truncated). Note how this temperature curve does not look like the IPCC hockey stick.

Perfect correlation between fossil fuel use and atmospheric CO2 increase Once the CO2 hockey stick was created, it could be shown that there exists a perfect relationship between cumulative carbondioxide emissions (from human activity) and the amount 'added' to the air, as shown in this graph, spanning about one century. There remains a small problem of course, that for 140 units of human emissions, only 80 remain in air (consistently 80/140 = 57% from 1960-2010). During this period of one century, nature has emitted (link) about 60+60Gt from land plus 100Gt from the sea, equals 220Gt per year, compared to about 700Gt base line in air, or (220/700) x 330 = 100 ppmv per year. Thus in a century 100 x 100 = 10,000 ppmv during the same period as graphed here. And of course, all that carbondioxide has disappeared. Only the human part of 80ppmv remains, which is odd. There is something seriously wrong here. (See below for an explanation)

AR4 page 137 states: "A wide range of direct and indirect measurements confirm that the atmosphere mixing ratio of CO2 has increased globally by about 100ppm (36%) over the last 250 years from a range of 275 to 285 ppm in the pre-industrial era (AD 1000-1750) to 379ppm in 2005". Where are these measurements apart from the Keeling curve? Surely not all from ice cores?

Important points:

• the temperature hockey stick is entirely fraudulent.
• surface temperatures are in a terrible mess. [2]
• the CO2 hockey stick is based on questionable ice core data for most of the past. (see below)
• other CO2 measurements have been ignored or rejected.
• CO2 in air increases at a steady 57% of emissions. [3] (strange)

[1] Holland, David (2007): Bias and concealment in the IPCC process: the 'Hockey-stick' affair and its implications. http://meteo.lcd.lu/globalwarming/Holland/Bias_and_Concealment.pdf - an important read, also for future generations.
[2] http://scienceandpublicpolicy.org/images/stories/papers/originals/surface_temp.pdf - Joseph D’Aleo and Anthony Watts (2010): Surface temperature records: policy-driven deception? (200 pages) "..so much fiddling and dishonesty have been going on that it is impossible to say whether warming has occurred at all". Surface temperature recordings are in a terrible mess. Important read.
[3] http://www.greenworldtrust.org.uk/Science/Scientific/MLO-emissions.htmHidden surprises in the CO2 figures. A critical analysis of the Keeling curve and what it means.

Computer models have made great progress since the very first ones running on IBM mainframe computers (1970s). Since then, computer crunching power has increased dramatically and so has the complexity of climate models [2]. The IPCC relies on about two dozen slightly different GCMs.
 
 

IPCC AR4 proudly presents this diagram showing all the factors taken into account in their GCMs but most of these factors are entered as 'forcings' which are fixed parameters equivalent to energy inputs.

The general criticisms of climate models are:

• an incomplete understanding of the climate system: there are simply too many unknowns and conceptual errors. Knowledge has not stood still.
• an imperfect ability to transform our knowledge into accurate mathematical equations: most effects are parameterised and 'tweaked' to reach the desired effects. Most mathematical equations are simplified or linear.
• the limited power of computers: even with 100km grids, present-day supercomputers are not powerful enough.
• the models' inability to reproduce important atmospheric phenomena: the actual physics is left out which leaves the models open to runaway fantasy, not limited by physical constraints.
• inaccurate representations of the complex natural interconnections: present models cannot connect population density to urban heat island effect; land use change to a change in the hydrological cycle; and so on.

There are a number of inconvenient truths you should know about GCMs:

• They are not science because computer models, spreadsheets and computer programs cannot be proved to be right (verified). They cannot be falsified either, an important deviation from true science. GCMers circumvent this problem by letting their models predict the past, while tweaking their many assumptions, and then believing what they predict for the future must be true. This is no proof and tweaking is not science either. GCMs just follow the GIGO law of computing: Garbage In = Garbage Out. If only a single assumption is wrong or a single factor has been left out, the GCM and its prediction is simply WRONG, and the chance of a GCM being RIGHT is infinitesimally small.
• Imagine our planet the size of a billiard ball. Then the thickness of our biosphere from the deepest ocean trench to the highest mountain and above that, amounts to a smear of no more than a human hair in thickness. Within this thin smear, everything happens from deep ocean circulation to surface currents to surface weather to jet streams to troposphere and ozone holes. Computer models do not like the absurd difference between vertical and horizontal dimensions (1000 times). So they work with all kinds of assumptions on how one layer affects the next. They are not EXACT. The computer power to do better has not yet arrived. Present grid points are about 110km squares. Compare this to a 10km troposphere and the models are still 30-50 times too coarse.
• GCMs treat the planet as a dead planet, but we know that the planet reacts as if it were a living organism. We owe this to independent scientist James Lovelock who concluded that Earth's atmosphere was so unlike its sister planet ( Mars) because life had changed it. He also discovered how Planet Earth as a living organism (GAIA), regulates its temperature.
• GCMs leave out major drivers or 'connections'. The driver of global warming is thought to be: more people -> more fossil fuel burning -> more greenhouse gases -> global warming. But the GCMs concern themselves only with the last step. However, the planet reacts: more CO2 -> more plant growth, thereby absorbing a very large part of human-made CO2. Better still: more CO2 -> more plankton -> more dimethylsulfide (DMS) -> more clouds -> global cooling. Leaving this feedback effect out, will simply give wrong results. One would expect that the global cooling gas DMS has been studied extensively and monitored accurately since it was first discovered, but not enough of this has happened, even though NOAA is constructing a database of DMS concentrations for future use by GCMs.
• Changes in the water cycle: One of the largest drivers of climate change has been ignored completely by GCMs: more people -> less forest -> less water circulation -> less heat transfer -> major climate change. It results in the centres of continents drying, deserts expanding, continental glaciers shrinking, winds changing their paths, ice caps shrinking, and ocean currents changing. This climate change began even before fossil fuel use. What you need to understand is that heat transfer around the globe is done mainly by water evaporating and condensating, and that all rain and snow comes from the sea. If such a large driver is left out from GCMs, how reliable can they be? What is the whole climate change debate worth without it?

• they do not simulate the physics. Instead 'guestimated' parameters are set. They do not simulate water vapour and cloud formation behaviour with altitude; neither vertical heat transport.
• they cannot handle a 'fluid' with variable density, as air is.
• clouds cannot be parameterised correctly: clouds arise in response to local conditions and little is known about it.
• they are based on linear equations, not like the natural world which experiences turbulence and chaos, and non-linear density, evaporation, condensation and so on.
• they cannot predict regular anomalies: seasons, volcanic eruptions, El Niño, decadal cycles, sunspot variations, ice ages. Short-term calibration of a long-term tool cannot unravel the long-period irregularities in the climate system
• forecasts are not separated from politics: they drive politics.
• the various models are not independent: they are all alike, driven by the same beliefs.

"The forecasts in the Report were not the outcome of scientific procedures. In effect, they were the opinions of scientists transformed by mathematics and obscured by complex writing. Research on forecasting has shown that experts’ predictions are not useful in situations involving uncertainty and complexity. We have been unable to identify any scientific forecasts of global warming. Claims that the Earth will get warmer have no more credence than saying that it will get colder."

• Prof Freeman Dyson: "the models used to justify global warming alarmism are full of fudge factors. They do a very poor job of describing the clouds, the dust, the chemistry, and the biology of fields and farms and forests. They do not begin to describe the real world that we live in"
• Dr. Zbigniew Jaworowski: "the U.N. based its global-warming hypothesis on arbitrary assumptions and these assumptions, it is now clear, are false."
• Dr. Richard Lindzen: the IPCC is "trumpeting catastrophes that couldn’t happen even if the models were right."
• Prof. Hendrik Tennekes: "there exists no sound theoretical framework for climate predictability studies used for global warming forecasts".
• Dr. Antonino Zichichi: "global warming models  are incoherent and invalid.”
• Prof Robert E Stevenson: "The science of climate has been buried alive by an avalanche of ideology-based computer models"

Important points:

• our knowledge about Earth's climate is still inadequate; too inadequate to base computer models on.
• our knowledge is changing rapidly.
• computer models can never predict the future; they are useful for studying the past.
• computer models cannot be verified, nor proved wrong. They are not scientific.
• ignore the IPCC and pay attention to actual observations.
• the whole IPCC report is a house of cards, based on flimsy and concocted evidence.

[1] Anthoni, J Floor (2007): Science needs skeptics: The important roles that outsiders and skeptics play in science.
[2] A history of Global Climate Modelling: http://www.aip.org/history/climate/GCM.htm
[3] Global climate models and their limitations: http://www.heartland.org/publications/NIPCC%20report/PDFs/Chapter%201.pdf.

Was pre-industrial CO2 lower than today? This graph shows the most important measurements of CO2. The red curve is the Keeling curve of actual CO2 measurements at Mauna Loa, Hawaii. It is paralleled by similar measurements elsewhere, all located by the ocean. Although CO2 concentrations there vary remarkably, a procedure is in place to record minimum values, considered 'the background level'. Preceding the Keeling curve, are precise chemical measurements done over a period of 150 years. They too show enormous noise but also a consistent swing (the green curve). This would have been unacceptable to the CAWG theory. Fortunately CO2 bubbles can be found in ice cores like that from the Siple dome (brown). But it refuses to join up with the Keeling curve. So it was shifted by 83 years, because the first 50 metres (4.5 bar) consist of loose firn rather than closed bubbles (is somewhat defensible). The corrected Siple curve spliced onto the Keeling curve gave the IPCC the perfect IPCC hockey stick for carbondioxide.

But many scientists disagree, as expressed by Prof Jaworowsky: indeed CO2 gas dissolves readily in ice under pressure, forming clathrates; drilling contaminates cores with drilling fluid while forming cracks; as ice cores relax, dissolved CO2 gas from clathrates expands and forms new bubbles; gas escapes from ice cores (likewise for nitrogen and oxygen at different 'dissociation' pressures); average pre-industrial CO2 concentration was around 330ppmv, not 260.[1] Another fact is that CO2 is 70 times more soluble in water/ice than nitrogen and 30x more than oxygen.
In other words, CO2 disappears from bubbles in ice over a period of up to a millennium, thereby falsely lowering the CO2 readings. This is also borne out by CO2 levels in other warm inter-glacial periods. Also archaeological studies of leaf remains show that their breathing pores (stomata) did not adjust to lower CO2 levels.
 
 

Relative CO2 concentrations can be inferred from sediment cores, some dating back nearly one billion years ago. The graph here was produced by Budyko, already back in 1977 and has been confirmed by many other measurements, although small differences remain. It shows that CO2 in air has always been much higher than today at 2000-4000ppm. In the carboniferous epoch land plants laid it down as coal, doing it again in the Permian. During the Triassic and Jurassic epoch it allowed huge plants and animals to prosper. In other words, carbondioxide is good. CO2 appears to be produced by volcanism, which is now at a low.

Important points:

• The Keeling curve does not measure average CO2 but minimum CO2.
• the IPCC bases its claim on a single ice core(but other ice cores also show lower concentrations).
• there is no proof that the measured low CO2 is indeed real and accurate.
• conflicting evidence exists.
• during the ice ages CO2 levels were indeed lower.
• the world is still recovering from last ice age.
• carbondioxide is enormously beneficial to life. See chapter 5 Greening Planet.
• volcanism appears to control CO2 levels in the past.
• IPCC claims are wrong.

But could there be an other explanation?
 

The Mauna Loa CO2 curve (Keeling curve) is sufficiently known, but this graph shows detailed seasonal fluctuations of this curve, and also from other stations. Going from north to south, the fluctuations become less: Barrow Alaska (green), Mauna Loa Hawaii (blue), Samoa near equator (purple), South Pole (red). From this, one can conclude that CO2 is mainly produced in the northern hemisphere (where most people live), where it also disappears (because most land plants live there too). Note that the rise in CO2 is always more gradual than its decrease, which dips in the months 6-8 (June-August), the growing season in the north. It suggests that the northern continents absorb most CO2, whereas the oceans (Mauna Loa, Samoa) do very little. It also suggests that the residence time of CO2 in air is no more than a few months rather than years, because in 4 summer months nearly all of the increase of the whole year, is undone. But isotope analysis suggests 5-14 years, most likely 5 years. The IPCC says several centuries.

This beautiful 'carpet' graph from NOAA shows the CO2 fluctuations by latitude and year. It confirms again that most of the CO2 is produced and consumed in the northern hemisphere and that atmospheric mixing (transfer from north to south) does not appear significant within one year.

 

CO2 residence time paradoxes There exists a paradox about the residence time of carbondioxide in air. This diagram was taken from the place where the carbon pipe idea was explained (acid2/pipe important reading!). CO2 is returned to air by animals who breathe it out after 'burning' some of their food, but most of the food chain is decomposed by bacteria and fungi who have a difficult job of stripping C,H and O from dead biomatter, returning CO2 in the process. But in the sea most of it is done in several weeks (residence time 1 month, say). We also discovered that plants and bacteria team up in the process of symbiotic decomposition in order to speed the process up and more importantly, to complete it. Thus the stream of carbondioxide to roots is fast, but it never enters the atmosphere. Similarly in the sea between plant plankton and its symbiotic decomposers. Thus CO2 has very short and also long residence times. There is a continual exchange between sea and land, in the form of an imaginary carbon pipe. When an ice age begins, the sea cools and absorbs CO2, which it steals from the land. The land vegetation becomes poorer. After an ice age, the reverse happens and the land vegetation becomes richer. The circulation in this carbon pipe can be quite fast, even though CO2 concentrations do not change notably. But with higher concentrations, plants are more productive and the flow through the pipe is faster. The reason the IPCC scientists estimate a CO2 residence time of centuries, comes from believing that the increased concentration is entirely due to humans. Having 80 ppm left after say 50 years, with about 3ppm added each year of which 2 ppm remains, means that should we stop burning fossil fuel today, it will still take a couple of centuries before the air is back at pre-industrial 290ppm at a rate of about -1ppm per year. The IPCC treats human CO2 as a separate leaky bucket with a 0.5-1ppm/y hole in it. This bucket is filled to 80ppm and it's level is rising, and the other bucket has no hole in it and is filled to 290ppm. So this is what they told their computer models, but could there be a better explanation?

It is clear that land plants have an uncanny ability to remove CO2 from air, and that this ability keeps up with additional amounts of CO2. However, their rate of absorption can increase only if the background level of CO2 increases. In other words, rather than being a leaky reservoir with a residence time, the atmosphere works more like a pipe with a throughput depending on the CO2 concentration (pressure). The higher the pressure, the higher the flow. We coined and explained this idea in ocean acidification/carbon pipe (important read). This idea is also supported by the fact that during ice ages carbon flows from land to sea while during warm interglacials the opposite happens.

So we must be prepared to face the unthinkable, which also does away with a number of paradoxes:

In other words, the rise in CO2 is only partly from humans, but it does not matter because nature adjusts to more 'food'. The oceans have been expelling CO2 ever since the warm interglacial began. Life as we know it, and civilisation, would otherwise not have been possible. In the past century we saw it rise by 0.6ºC.
 
 

Important points

• there exists overwhelming consensus that human made CO2 is the cause of rising carbondioxide levels.
• but the science is not settled. There are too many conflicts.
• CO2 does not have a long residence time. Most of it recycles very fast (weeks to one year) but some of it lingers in air much longer (several years).
• CO2 has been measured accurately and reliably only since 1960.
• short cycle times cannot be measured with radioactive isotopes. see further.
• during an ice age, carbon goes from land to sea and during warm interglacials, from sea to land.

Are atmospheric temperatures increasing and is this unprecedented? This question should be easy to answer, but surprisingly, it is not. We've just seen the drama of the hockey stick and in chapter3 about measuring temperatures we've stumbled over a number of insurmountable problems. So let's go back to the end of last ice age. The temperatue then may have been 20 degrees lower (in Greenland) but for the world more likely, only 8-10 degrees (some say 2-4). In this graph also the hockey stick is shown (top right), which immediately refutes that the 1990s have been the warmest period, and that higher temperatures could be catastrophic. In fact, the world has seen worse temperature swings in the past 5 million years, shown in the graph below, and temperature has been above today's (dotted line) for a long time. This immediately refutes that a rise in temperature would be catastrophic. Note how sea levels first rose by 17mm/year (melting of ice caps), but gradually flattened to 1-2mm/y, which means that the sea is still warming and therefore expelling CO2. At some time soon, this is expected to end.

Climate swings have progressively become worse over 5 million years. The last ice age is on left. Further back in time even warmer climates occurred. The IPCC hockey stick would not be visible on this scale.

The temperature record from land-based thermometers and ships' thermometers is not perfect but it shows a large agreement between them. Both show a steady rise from the beginning of the industrial age, but land temperatures outrun sea temperatures. Alas, land temperatures have been fiddled with, so the downturn after 1998 is not visible. They also suffer from urban heat, which makes the sea temperatures therefore more reliable. Superimposed on the upward trend is a slow 40-60-year wave of unknown origin, but tracking solar strength, and a ten year cycle is also visible, identified as the Pacific Decadal Oscillation. The sea appears to have warmed by +0.4ºC and the land by some +1 degree.

Ocean heat content and temperature This graph of ocean heat content and surface temperature shows a slightly different picture, although it is based on the same sources [4]. Interesting is how all curves have a very similar trend, meaning that the temperatures of ocean and Earth's surface, are closely linked. It is also interesting to note that the ocean varies in temperature to a depth of 3000m, which means that there is unexpectedly good mixing down to that depth, and that the whole water column to 3000m depth may contribute to either outgassing of CO2 or its absorption. It is strange, however, that rather large swings in ocean heat content did not mirror itself in the two temperature records. It is stranger still that the deepest part of the oceans (green curve) experiences the largest swings (volcanic activity? or the effect of 'reconstruction' with models by Levitus 2001?).

Meteorologist Joe D'Aleo: "... leading meteorological institutions in the USA and around the world have so systematically tampered with instrumental temperature data that it cannot be safely said that there has been any significant net 'global warming' in the 20th century."
 
 

This very interesting graph relates periods of warming and cooling over 4000 years to known historic events. (click for a larger version) It is even uptodate to Nov 2009 after cooling began in 1998. Study it to let the effect of temperature on civilisation, sink in. In every warm period, civilisations flourished, only to languish or disappear in successive cold periods when there was not enough food. The most recent cold period was the Great Potato Famine (Dalton mimimum, 1845-1852) and before that the Little Ice Age when the Thames froze over (Maunder minimum 1645-1715), which caused hunger, disease and mass emigrations to the USA.

Important points:

• forget the land data: both air and land store very little heat. Look only at the ocean data.
• oceans contribute to a depth of over 3000 metres. Not so sure.
• the recent history of instrumental temperature is still questionable, particularly the land part.
• it is not certain that recent temperatures have been rising. Most of it is caused by urbanisation and fiddling or 'adjustments' as they are called.
• warming as claimed by the IPCC is not unprecedented. 1998 was not the warmest in this millennium.
• warming by 2 degrees has happened before without catastrophic effects.
• warming is good; cooling is bad.
• the IPCC claim is wrong.

All ancient records, from ice cores to sediment cores, to corals to dripstones, show that temperature changes preceded CO2 changes by 100-800 years. But even the most recent records show this. Here are the fluctuations in temperature and CO2 (from Mauna Loa) from 1958, also showing that temperature mainly leads CO2. This overwhelming fact means that CO2 does not cause temperature changes.

The diagram shows how one can conclusively plot whether a consistent time lag exists between two signals. On left an imaginary plot of temperature (red) leading CO2 (green) as the time scale runs from right to left. Both are perfect oscillations with a 90 degree phase shift, such that when one is plotted against the other (in an X-Y plot), a perfect circle is run in the clockwise direction. So clockwise means the bottom axis (red) is in the lead, and counterclockwise means the opposite.

Jeffrey Glassman [2,3] has taken the detailed data from the Vostok core and plotted each [temperature, CO2] pair on an X-Y plot, leaving them interconnected. The result is a squiggle with a consistent clockwise rotation, proving that temperature (bottom axis) is always in the lead. He did something more amazing, by fitting the complement of solubility, the part in air that is in equilibrium with water (green curve), which gives an even better fit than a polynomial. This provides very strong evidence that the outgassing of the sea is the main cause of CO2 in air. What's more, this curve fits better than a polynomial fit through all data points. The outgassing-from-oceans relationship is also supported by Endersbee, giving a straight line correlation (link).

Important points

• Venus is a young planet with a hot surface. There has never been a runaway greenhouse effect. It radiates more heat than it receives. Chapter1.
• wherever CO2 and temperature were measured, in ice cores and sediment cores, corals and dripstones, temperature changes always preceded CO2 changes. This means that warming causes CO2 to rise, and not the other way around.
• Glassman established a strong correlation between ocean's outgassing and CO2.
• Earth has been through periods with much higher CO2 concentrations (up to 4000ppm) and this was only beneficial.Budyko.
• there have been epochs with high CO2 concentrations but low temperatures.
• CO2 is such a potent greenhouse gas that its effect is fully saturated. Chapter1.
• there exists no experimental proof that CO2 causes warming.
• the assumptions of the IPCC have no basis. Its report is just a house of cards (very fragile).

Are sea levels rising? Coming out of the last ice age, sea levels have indeed been rising at 17mm per year for six millennia, but for nearly 7 millennia, sea levels rose more slowly at 1-2mm/year. This graph shows that 2-3 centuries ago in the Little Ice Age, the rise halted, only to continue at a steady 1.7mm/y since 1850, the industrial age. Very recent measurements with TOPEX and JASON satellites, show that a rise of 3.2mm/y (the top of left-hand graph) has flattened out and begun to decline.

Because continents rise and sink while bobbing on the underlying 'liquid' mantle, measuring sea levels was always a dodgy affair. Today with very precise satellite altimetry, the level of the sea can be determined with such accuracy that even anomalies can be observed. This world map shows where the highs and lows are, but they cannot yet be explained. The two hemispheres also behave differently. Normally one expects high barometric pressure to cause a lower sea level.

Important points

• sea levels rose by 70-100m in the 7 millennia after last ice age at a rate of about 17mm/y
• sea levels are not rising more than they always did for recent 7 millennia (1-2mm/y)
• it looks as if seas have stopped rising for a while
• IPCC claims are wrong

[1] Prof. Zbigniew Jaworowski: Climate Change: Incorrect information on pre-industrial CO2. March 19, 2004. Statement of Prof. Zbigniew Jaworowski, Chairman, Scientific Council of Central Laboratory for Radiological Protection Warsaw, Poland. http://www.middlebury.net/op-ed/Jawoworski%20CO2%202004.doc
[2] http://www.rocketscientistsjournal.com/2006/10/co2_acquittal.htmlCO2 ACQUITTAL: the acquittal of carbondioxide by Jeffrey A. Glassman, PhD
[3] Vostok ice core data http://cdiac.ornl.gov/ftp/trends/co2/vostok.icecore.co2
[4] Schwarz, Stephen E (2007): Heat capacity, time constant and sensitivity of Earth's climate system. J Geophys Research. http://www.ecd.bnl.gov/steve/pubs/HeatCapacity.pdf. difficult but important climate science.

The missing carbon-13 The isotope carbon-13 was discussed in chapter3 with this diagram. Carbon-13 is a stable carbon isotope which occurs at 1.1% in the atmosphere, which calibrates to a 'delta' of -7‰ compared to the C-13 standard. But fossil fuels mysteriously contain less, by as much as -50‰ (-5%). Thus when fossil fuels are burnt, and their carbon mixes into the biosphere, the atmosphere ends up containing less Carbon-13. Society also makes cement from fossil carbonates, but these add (+1‰) to the atmosphere (-7‰). However, for a first estimate we can ignore this.

The diagram here shows that the air becomes indeed deficient in carbon-13. Note that the black curve shows annual emissions, whereas the red curve (Keeling 2005) shows what is missing from air and is thus cumulative. Note also that the red C-13 scale is upside down. This trend has been measured at many sites, all roughly agreeing with one another. Missing from the red curve is seasonal variation [1] which is a steady 0.4‰! From 1980 to 2000 about 0.4‰ went missing compared to a -7.8‰ baseline or about 5% of the available C-13. During that period fossil fuel emissions amounted to about 120GtC with a deficiency in C-13 of -50‰. If all that carbon had remained in air, it would have contributed to 120 / 700 x 50 = -8.6‰ loss rather than -0.4‰.

Another way of looking at it: 8‰ corresponds to 700GtC, and 0.4‰ to 35GtC 'missing'. To replace this by carbon which is 6 times more deficient requires 1/6 of 5/6, or 7GtC of fossil fuel or one year's burning. Very little indeed. But these calculations are rather coarse, and some fossil carbon comes from coal which was laid down by plants, and which is thus less 'deficient', making the 7GtC more.
The most important point to draw is that fossil fuel carbon has disappeared almost completely, and this is no surprise because plants prefer 'classic' carbon-12.

So what does it all mean?

• fossil fuel emissions are happening and becoming part of the biosphere. (big deal)
• most of it is recycled into the biosphere. As expected.
• recycling is very fast, suggesting a short residence time. (seasonal swing is as large as the loss in 20 years)
• what remains in air is a small amount (5% or 17ppm over 20 years)
• there must be another source of CO2 slightly depleted in C-13. (ocean?)

[1] CO2 data from CDIAC http://cdiac.ornl.gov/trends/co2/contents.htm including C-13 and C-14 for many stations.

The missing oxygen or anoxia In AR4, the IPCC shows this graph with the Keeling curve from 1970 and the missing oxygen curve from Bender (2005) [1] (Bender curve?). It clearly shows that the rising CO2 concentration was caused by the burning of fossil fuel because this 'new' fuel required 'new' oxygen in order to be burnt, and apparently in the same quantities. However, the graph was intentionally misleading because the vertical scale for oxygen (magenta) is very different from that of carbondioxide (black). In chemistry, volumes of gases can be compared because a certain volume containing oxygen, has the same number of molecules as the same volume of any other gas (pressure and temperature must be the same of course). Thus numbers expressed in ppm-by-volume or ppmv, can be compared chemically with one another. However, the per meg unit needs to be divided by 4.8 to give ppmv oxygen [2, why?].

There is something seriously conflicting here. Take the decade of the 1990s. During that decade humans burnt 65GtC or 30ppmv of which 57% or 17ppmv remained in air. During that same period, about 200 per meg = 200 / 4.8 = 41ppmv oxygen went missing, or nearly 2.5 times as much. We can account for 17ppmv oxygen but not for the remainder, a serious discrepancy. Why?

• is the experiment faulty? Does it overweigh the oxygen? But also its trend is 'overweighed' - possible.
• has there been a lot of 'unaccounted' burning going on, like:
• soil loss: when soils are laid bare, their microorganisms 'burn' carbon compounds (like humus) at low temperature, as if decomposing biomatter: CH2O + O2 => CO2 + H2O. But where then is the released CO2?
• humans breathing: this also produces CO2 and is a very small amount.
• deforestation: burning wood returns carbondioxide while using oxygen.
• cement manufacturing:
• suppose there has been an invisible burning going on as the authors surmise, then the resulting CO2 has disappeared:
• in land vegetation: CO2 + H2O => CH2O + O2  so this would have returned oxygen. One cannot lose oxygen to the land vegetation.
• in the sea vegetation and plankton: not possible as above.
• dissolved in the sea: possible but not while the sea is warming

Important points:

• the amount of missing oxygen points to unaccounted-for burning
• the unaccounted CO2 plus the accounted-for CO2 from fossil fuel must have been absorbed by the oceans, leaving 57% in air.
• seas must be absorbing CO2 rather than expelling it.
• these findings are paradoxical and do not fit in with warming oceans.

[1] Bender, Michael L et al. (2005) Atmospheric O2/N2 changes, 1993-2002: implications for the partitioning of fossil fuel sequestration. Global Biochem Cycles 19, GB4017, 2005
[2] the per meg delta value is not exactly the same as ppmv as it is based on the ratio of oxygen to nitrogen (21/78)=27% whereas oxygen ppmv is 210,000 (21%). The delta is calculated as in delta-O-13: deltaO2/N2 = ((O2/N2sample - O2/N2standard) / O2/N2standard) x 1E6, which is 30% higher than delta expressed as ppmv. Bender quotes a conversion factor of 4.8 from ppmv to per meg delta(O2/N2), which we don't understand.

The dilution of radioactive carbon-14, Seuss effect Because fossil fuel has been underground for a very long time (millions of years), its radioactive carbon component with a half-life of about 5000 years, has been extinguished. Thus CO2 from fossil fuel has no radioactive carbon left, which causes it to dilute the radioactive carbon in air and biosphere. This is also called the Seuss effect. (Hans Eduard Suess (1909-1993) was an Austrian physical chemist and nuclear physicist). During a short period of 7 years, the dilution of the radioactive isotope carbon-14 was measured at the north and south poles [1], resulting in two straight trends with opposite seasonal fluctuations. Carbon-14 decline was measured in carbondioxide, so it gives us another idea of how much fossil carbon dioxide remains in air. The graph shows a 100‰ (10%) decline in one decade.

• radioactive carbon is made constantly by neutron bombardment of nitrogen N2, at an altitude of 8-15km. It also reacts with oxygen to form radioactive CO2, which is easily washed out of the atmosphere by water. It then takes part in the carbon cycle.
• the production of C-14 depends mainly on solar activity and cosmic radiation.
• it also depends on volcanic and seismic activity (CO2 from colcanoes has no C-14).
• the C-14 measurements are compared to a standard oxalic acid from 1955.
• thus radiation changes since 1955 and in the period 1984-1992 must also be taken into account.
• plants prefer classic CO2 over the 'heavier' radioactive CO2.
• classic CO2 'evaporates' more readily than radioactive CO2. Thus the oceans exhale low-C-14 carbondioxide, almost indistinguishable from fossil fuel CO2.

• the dilution of carbon-14 agrees strongly with the idea that the rise in CO2 concentration in air is proportional to human emissions, suggesting that it is caused by human emissions.
• the origin of the diluting CO2 cannot be ascertained because the ocean's outgassing is also poor in radioactive carbon.
• for inexplicable reasons the measurements were discontinued and the Suess effect is no longer current with global warming advocates.

[1] Meyer H A J et al. () High Accuracy 14C Measurements for Atmospheric CO2 Samples from the South Pole and Point Barrow, Alaska by Accelerator Mass Spectrometry http://cdiac.ornl.gov/trends/co2/meijer/Meijer_14C.html
[2] Thomas Higham: Measuring, calculating age and reporting radioactive carbon.  http://www.c14dating.com/agecalc.html

Other greenhouse gases The caption to these five graphs from IPCC AR4 reads: "Global trends in major long-lived greenhouse gases through the year 2002. These five gases account for about 97% of the direct climate forcing by long-lived greenhouse gas increases since 1750. The remaining 3% is contributed by an assortment of 10 minor halogen gases, mainly HCFC-22, CFC113 and CCl4." As has been shown before, both carbondioxide and methane trap infrared radiation so eagerly that their effects saturate at a mere few metres in air, thus becoming part of convection with no distinction from oxygen and nitrogen. Note that methane emissions have been levelling off, and it is not known why.

"The mitigation measures suggested for climate change (reduced use of carbon-based fuels, more renewable energy sources, carbon capture and storage, less use of nitrogen-based fertilizers) are all part of a portfolio of approaches that are needed to produce a more sustainable world." This statement reveals the true political motivation in the IPCC. The global warming scare is intended to jolt the world into action for a more sustainable world using less carbon-based fuels and other things. A noble goal achieved through lies, but more to the point: 1) renewable energy sources like wind mills, have proved to produce more rather than less CO2; 2) carbon capture and storage are technological nightmares that do not deliver on energy efficiency; 3) less use of nitrogen-based fertilisers is possible by having more carbondioxide in air.

"It is simple physics that these extra gas concentrations will trap an increased amount of outgoing solar radiation reflected off the Earth’s surface, of the order of 1.5 watts per square metre of the Earth’s surface." The physics is far from simple as explained in the preceding chapters. The 1.5 W/m2 heat retention by greenhouse gases is purely a guess, unsubstantiated by fact.

"It is also clear that the oceans absorb about 85% of the excess heat resulting from this radiative forcing by greenhouse gases (as well as about 40% of the carbon dioxide). Detailed measurements of the changes in oceanic heat content, and the temperature rise that accompanies this, agree quantitatively with the predicted radiative forcing." Oceans do not absorb heat from the air, but warm up due to solar irradiation. There is no proof that oceans have been absorbing CO2, whereas the evidence for net outgassing is more substantial. Radiative forcing is a non-scientific concept and the models based on it are equally unscientific.

"The amount of extra carbon accumulated in the ocean and the atmosphere matches the known quantity emitted by the combustion of fossil fuels." They don't. Huge discrepancies and paradoxes remain.

"It is a plain fact that human activities have significantly increased the concentrations of greenhouse active gases in the atmosphere, particularly since the mid-20th century." Incorrect. It is true that humans have added greenhouse gases to the atmosphere, but most of this has been absorbed by plant life. There has been a rise in atmospheric carbondioxide since 1960 but where it came from, is unknown. There is no solid proof that the oceans absorbed the excess carbon. There is no proof whether oceans are outgassing or absorbing CO2. During this time the sun has been active, but since 2000 is entering a state of reduced activity.