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From: https://wattsupwiththat.com/2015/05/12/22-
22 Very Inconvenient Climate Truths
Guest Blogger / May 12, 2015
Here are 22 good reasons not to believe the statements made by the Intergovernmental Panel on Climate Change (IPCC)
Guest essay by Jean-
According to the official statements of the IPCC “Science is clear” and non-
Quick action is needed! For more than 30 years we have been told that we must act
quickly and that after the next three or five years it will be too late (or even
after the next 500 days according to the French Minister of foreign affairs speaking
in 2014) and the Planet will be beyond salvation and become a frying pan -
But anyone with some scientific background who takes pains to study the topics at
hand is quickly led to conclude that the arguments of the IPCC are inaccurate, for
many reasons of which here is a non-
The 22 Inconvenient Truths
1. The Mean Global Temperature has been stable since 1997, despite a continuous increase of the CO2 content of the air: how could one say that the increase of the CO2 content of the air is the cause of the increase of the temperature? (discussion: p. 4)
2. 57% of the cumulative anthropic emissions since the beginning of the Industrial revolution have been emitted since 1997, but the temperature has been stable. How to uphold that anthropic CO2 emissions (or anthropic cumulative emissions) cause an increase of the Mean Global Temperature?
[Note 1: since 1880 the only one period where Global Mean Temperature and CO2 content
of the air increased simultaneously has been 1978-
3. The amount of CO2 of the air from anthropic emissions is today no more than 6% of the total CO2 in the air (as shown by the isotopic ratios 13C/12C) instead of the 25% to 30% said by IPCC. (discussion: p. 9)
4. The lifetime of CO2 molecules in the atmosphere is about 5 years instead of the 100 years said by IPCC. (discussion: p. 10)
5. The changes of the Mean Global Temperature are more or less sinusoidal with a well defined 60 year period. We are at a maximum of the sinusoid(s) and hence the next years should be cooler as has been observed after 1950. (discussion: p. 12)
6. The absorption of the radiation from the surface by the CO2 of the air is nearly
saturated. Measuring with a spectrometer what is left from the radiation of a broadband
infrared source (say a black body heated at 1000°C) after crossing the equivalent
of some tens or hundreds of meters of the air, shows that the main CO2 bands (4.3
µm and 15 µm) have been replaced by the emission spectrum of the CO2 which is radiated
at the temperature of the trace-
7. In some geological periods the CO2 content of the air has been up to 20 times today’s content, and there has been no runaway temperature increase! Why would our CO2 emissions have a cataclysmic impact? The laws of Nature are the same whatever the place and the time. (discussion: p. 17)
8. The sea level is increasing by about 1.3 mm/year according to the data of the
tide-
9. The “hot spot” in the inter-
10. The water vapour content of the air has been roughly constant since more than 50 years but the humidity of the upper layers of the troposphere has been decreasing: the IPCC foretold the opposite to assert its “positive water vapour feedback” with increasing CO2. The observed “feedback” is negative. (discussion: p.22)
11. The maximum surface of the Antarctic ice-
12. The sum of the surfaces of the Arctic and Antarctic icepacks is about constant,
their trends are phase-
13. The measurements from the 3000 oceanic ARGO buoys since 2003 may suggest a slight decrease of the oceanic heat content between the surface and a depth 700 m with very significant regional differences. (discussion: p. 27)
14. The observed outgoing longwave emission (or thermal infrared) of the globe is
increasing, contrary to what models say on a would-
15. The Stefan Boltzmann formula does not apply to gases, as they are neither black bodies, nor grey bodies: why does the IPCC community use it for gases ? (discussion: p. 30)
16. The trace gases absorb the radiation of the surface and radiate at the temperature
of the air which is, at some height, most of the time slightly lower that of the
surface. The trace-
17. The temperatures have always driven the CO2 content of the air, never the reverse.
Nowadays the net increment of the CO2 content of the air follows very closely the
inter-
18. The CLOUD project at the European Center for Nuclear Research is probing the
Svensmark-
19. Numerical “Climate models” are not consistent regarding cloud coverage which is the main driver of the surface temperatures. Project Earthshine (Earthshine is the ghostly glow of the dark side of the Moon) has been measuring changes of the terrestrial albedo in relation to cloud coverage data; according to cloud coverage data available since 1983, the albedo of the Earth has decreased from 1984 to 1998, then increased up to 2004 in sync with the Mean Global Temperature. (discussion: p. 37)
20. The forecasts of the “climate models” are diverging more and more from the observations. A model is not a scientific proof of a fact and if proven false by observations (or falsified) it must be discarded, or audited and corrected. We are still waiting for the IPCC models to be discarded or revised; but alas IPCC uses the models financed by the taxpayers both to “prove” attributions to greenhouse gas and to support forecasts of doom. (discussion: p. 40)
21. As said by IPCC in its TAR (2001) “we are dealing with a coupled non-
22. Last but not least the IPCC is neither a scientific organization nor an independent
organization: the summary for policy makers, the only part of the report read by
international organizations, politicians and media is written under the very close
supervision of the representative of the countries and of the non-
The governing body of the IPCC is made of a minority of scientists almost all of
them promoters of the environmentalist ideology, and a majority of state representatives
and of non-
Appendix
Jean Poitou and François-
Jean Poitou is a physicist and climatologist, graduated from Ecole Supérieure de Physique et Chimie (Physics and Chemistry engineering college) and is climatologist at the Laboratory of the climate and environment sciences at IPSL, a joint research lab from CEA, CNRS, and UVSQ (*). He has written a book on the Climate for the teachers of secondary schools
François-
For the whole article with the references go to the source: https://wattsupwiththat.com/2015/05/12/22-
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