INLEIDING TOT DE SKEPTISCHE LITERATUUR.
Inleiding in de meteorologie en de klimaat wetenschappen. Een degelijke inleiding in alle aspecten van de discipline vindt men in:
Hierin wordt genuanceerd op de kooldioxide problematiek ingegaan doch als een mogelijk reëel probleem geschetst. Op een geologische tijdschaal wordt deze behandeld in
De IPCC rapportage Dit zijn uitgaven van Cambridge University Press, maar deze zijn ook via de website van IPCC in te zien. ed. Houghton JT et al., Intergovernmental Panel on Climate Change, “Climate Change: The IPCC Scientific Assessment”, Cambridge, 1990. ed. Houghton JT et al., Intergovernmental Panel on Climate Change, “Climate Change 1992: The Supplementary Report to the IPCC Scientific Assessment”, Cambridge, 1992. ed. Houghton JT et al., Intergovernmental Panel on Climate Change, “Climate Change 1995: The Science of Climate Change”, Cambridge, 1996 ed. Houghton JT et al., Intergovernmental Panel on Climate Change, “Climate Change 2001: The Scientific Basis”, Cambridge, 2001. Het meest controversiële stuk is echter
Algemene sceptische literatuur in boekvorm. Een vroeg Nederlands protest tegen de alarmerende berichtgeving is een uitgave van ‘The global Institute for the study of natural resources’ in Den Haag, een initiatief van prof. (em) C.J.F. Böttcher (oud-lid van de club van Rome
Böttcher was medeoprichter van the European Science and Environmental Forum dat twee lijvige rapporten uitbracht
Onder de auteurs van bijdragen vindt men de namen van de wetenschapsbeoefenaren die heden ten dage nog steeds als gezaghebbende sceptici worden beschouwd, b.v. Segalstad, Barret, Corbyn, Priem, Jaworowski, Singer, Landscheidt, Soon, Baliunas. Friis Christiansen. In deze boeken wordt reeds uitvoerig ingegaan op de twijfel aan de oude theorie van Arrhenius dat kooldioxide het belangrijkste broeikasgas zou zijn en op de omkering van de door IPPC veronderstelde causaliteit: meer CO2 in de atmosfeer leidt tot ernstige temperatuurverhoging tot: de temperatuursveranderingen bepalen in overwegende mate de accumulatie in de atmosfeer. Meer recente beschouwingen over de twijfel aan de IPCC hypothese over de oorzaak van mogelijke ‘global warming’ vindt men in
Sceptische overzichtsartikelen Aan de basis van het hedendaagse protest tegen de IPCC interpretaties staat een stuk dat de grondslag werd voor de zogenaamde ‘Oregon petition’ een protest van 20.000 Amerikanen tegen het Kyotoprotocol.
Hierin worden alle dreigende klimaatveranderingen betwist (extreme temperatuur stijging, zeespiegelrijzing en extreme weersomstandigheden). In de officiële wetenschappelijke literatuur is de essentie van dit ‘manifest’ weergegeven in het artikel
Een algemene kritiek van Europese herkomst is:
Meer recente aanvallen op de TAR zijn
(h) is een niet gepubliceerde nota, tot de TAR-opstellers gericht met inhoudelijke kritiek op de data in een concept van de TAR. Dietze stelt dat het veronderstelde effect van aerosolen in de atmosfeer een factor 3 te hoog is gesteld, de verblijftijd van kooldioxide in de atmosfeer verkeerd is berekend, evenals het terugstralingseffect van kooldioxide in de atmosfeer. In de uiteindelijke versies van de onderdelen van de TAR vindt men van dit commentaar weinig meer terug dan de vele malen herhaalde zinsnede ‘dat er nog veel onzekerheden zijn’. De meest recente samenvatting van alle bezwaren tegen alarmerende voorspellingen is een artikel ‘in press’
Uit de samenvatting wordt hier aangehaald: “The global warming debate as presented by the media usually focuses on the increasing mean temperature of the earth, associated extreme weather events and future climate projections of increasing frequency of extreme weather events worldwide. In reality, the climate change issue is much more complex than an increase in earth’s mean temperature and in extreme weather events. Several recent studies have questioned many of the projections of climate change made by the IPCC reports and at present there is an emerging dissenting view of the global warming science, which is at odds with the IPCC view of the cause and consequence of global warming. Our review suggests that the dissenting view offered by the skeptics or opponents of global warming appears much more credible than the supporting view put forth by the proponents of global warming. Further, the projections of future climate change over next fifty to one hundred years is based on insufficiently verified climate models and are therefore not considered reliable at this point in time.” Een overzicht van de bezwaren tegen de houdbaarheid van de ‘global warming’ theorie, met verdere verwijzing naar bronnen, is weergegeven in de Annex A, te vinden op de website http://mclean.ch/climate/global_warming.htm In Annex B zijn de referenties in het artikel van Khandekar weergegeven, die verwijzen naar de belangrijkste kritische beschouwingen in de officiële wetenschappelijke literatuur. In het klimaatdebat wordt frequent teruggegrepen op waarnemingen op een geologische tijdschaal, ontleend aan ijsboringen in de poolgebieden. Twee kritische beschouwingen over de veronderstelde relatie tussen kooldioxide in the atmosfeer en de temperatuur (in het bijzonder gedurende ijstijden) zijn afkomstig van het Noorse instituut voor poolonderzoek:
INGANGEN VIA INTERNET Op tal van websites worden kritische beschouwingen geplaatst en dagelijks discussies gevoerd. Reeds genoemd is die van http://mclean.ch/climate/global_warming.htm “Global warming - Is it real?” En voorts: http://www.john-daly.com “Still waiting for the greenhouse” waarop in het bijzonder zeespiegelrijzing in de Pacific wordt betwijfeld. Die van de zonspecialist en klimatoloog Douglas Hoyt: http://www.warwickhughes.com/hoyt/climate-change.htm Dagelijkse nieuwsbulletins zijn CCNet (neem voor een abonnement contact op met Benny Peiser b.j.peiser@livjm.ac.uk ) En die van S Fred Singer, astrofysicus, specialist op het gebied van satelietonderzoek: http://www.sepp.org/
ANNEX A. The Greenhouse Warming ScorecardBron: http://mclean.ch/climate/global_warming.htm The scorecard simply gives some of the predictions that climate models have made and compares them to observation as would be done in any normal scientific endeavor. The scorecard includes links where further discussion can be found. At some point a more complete list of references may be added, but most can be found in the links or by a google search.
The table is not an exhaustive list of every claim made and we may add more items as time goes on. As of the date of this compilation (July 24, 2004), there are 34 items. Using a Win-Loss-Tie (or W-L-T) scoring system, we estimate the record is 3-27-5 for the greenhouse warming hypothesis, which is a poor record. The three items that seemed to be positive (receding glaciers, decreasing snow cover in the Northern Hemisphere, and stratospheric cooling) are heavily publicized without much mention of the other items. Stratospheric cooling is probably the strongest evidence, but ozone depletion may explain part of it and, in any case, it is far weaker than the models predicted. Receding glaciers and decreased snow cover could be explained by the sun which has been getting brighter over the last few centuries. Glaciers started receding before carbon dioxide started increasing, so using glaciers as evidence of greenhouse warming is weak evidence. Summary of Some Facts that Falsify the Climate Models In a recent issue of Climatic Change (vol. 37, p. 390), Curt Covey and Martin I. Hoffert make the following comments: "Rather, the test should be whether a theory is false. As Sir Karl Raimund Popper, philosopher of science and developer of the doctrine of falsibility, put it. 'our belief in any particular natural law cannot have a safer basis than our unsuccessful critical attempts to refute it' (Popper, 1979). So far, the climate models used by the IPCC have passed this falsibility test." (Note: this section was mostly written in1997-98.) As our "Greenhouse Warming Scorecard" shows, the IPCC models are false in many ways. Let's just highlight a few things where the models disagree with observations: 1.The models predict the recent warming due to greenhouse gases should occur equally during the day and night. Observations show most of the warming is occurring at night, so the observations falsify the models. A discussion of the diurnal temperature range (DTR) can be found here. The changes in DTR are caused by changes in surface properties rather than atmospheric properties. Removal of this non-climatic effect reduces the warming of the twentieth century from 0.6 C to about 0.3 C. The climate models get a warming which when plotted versus time and compared to observations appear to parallel each other, but this parallelism is only superficial and does not confirm the models. 2.Several models now published have model global temperatures and measured temperatures paralleling each other over time remarkably well. These models "explain" the warming to 1940 by anthropogenic carbon dioxide, the cooling from 1940 to 1970 by anthropogenic sulfate aerosols, and resumed warming from 1970 to the present by the anthropogenic carbon dioxide warming again become dominant. These models make an implicit unstated (and frankly bizarre) assumption that without these anthropogenic forcings, the natural climate would have been perfectly flat for 100+ years. No century has ever had such a stable climate, but for the anthropogenic forcing models to work, this assumption must be made. The probability of a flat background natural climate is less than 1 in a million; hence, the statistical significance of these apparently successful models is also less than 1 in a million. 3.Many of the climate models predict that cloud cover should be decreasing (while at the same time the total water content of the atmosphere is increasing), and, in fact, such a cloud cover decrease is crucial to amplify the greenhouse effect so it becomes the "enhanced" greenhouse effect. On the other hand, for any of the models to have a chance at explaining the diurnal temperature variations, they must invoke increases in cloud cover such that they decrease the predicted global warming by a factor of 5 to 6. 4.The models predict that the global annual cycle of temperatures should have decreased by 0.5 to 1.1 C during this century if greenhouse gases are forcing climate change. Measurements show only a 0.1 C decrease, thus invalidating the greenhouse warming hypothesis. 5.The models attribute the cooling from about 1940 to 1970 to sulfate aerosols. The quantity of aerosols they used are not based upon measurements, but are themselves model results. One prediction of this model is a maximum amount of aerosols in central Europe. Observations of atmospheric transmission in Davos Switzerland, right in the middle of the region where the model maximum in sulfates presumably existed, show no change in atmospheric transmission, contrary to the IPCC predictions. Observations in Belgium, Ireland, and other locations also falsify the IPCC modeled amounts of sulfate aerosols. 6.The models predict sulfate aerosols will cause a cooling forcing of 0.6 to 0.9 W/m2. Actual field measurements of the scattering properties of sulfate aerosols show that the models overestimate their cooling potential by a factor of 3 to 5. These measurements falsify the model's radiative treatment of sulfates and show that the cooling from 1940 to 1970 cannot be attributed to anthropogenic aerosols. 7.The models neglect to include soot particles, which warm. Measurements show that the warming by soot offsets any cooling by sulfates, particularly in urban regions. These measurements falsify the models treatment of anthropogenic aerosols, because the models are incomplete. One cannot just select certain portions of reality to build a model, while neglecting other portions of reality, and then call the model true. 8.The models predict a warming of about 0.35 C per decade in the mid-troposphere. MSU satellites, radiosonde thermistor, and radiosonde pressure transducers show a warming of about 0.08 C (1979-2003), thus falsifying the IPCC models. Furthermore, radiosonde observations for 1958-2001 show the temperatures are virtually identical for 1958 and 2001 (Seidel et al., 2004). 9.The models predict a warming of 1.0 to 3.0 C should have occurred in the polar regions between 1940 and now. Thermometer measurements show a cooling over this time period for the arctic as a whole, thus falsifying the models. Proxy measurements also show about a 0.3 to 0.4 C cooling for this interval. Alaska has warmed, but this is probably caused by a change in oceanic and atmospheric circulation called the Pacific Decadal Oscillation (PDO), which alone does not confirm, nor deny, the IPCC models. 10.The models predict the phase of the global annual cycle of temperatures should have shifted by minus 1.7 days in the twentieth century. Observations show a phase shift of +0.8 days, opposite in sign to what the models predict, thus falsifying the IPCC models. 11.The models predict a 0.50 cm/yr rise in sea level. The TOPEX/POSEIDEN observations show a 0.25 cm/yr rise (through 2003), providing no solid confirmation of the IPCC models. These eleven tests all falsify the IPCC climate models. There are many additional ways the models fail, some of which are covered in the scorecard. A common feature of these falsifications is that the models tend to overestimate signals by a factor of 3 to 10. 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