About greenhouse gases
Caveat: The supporters of the human greenhouse hypothesis (AGW = Anthropogenic Global Warming), which assign a dominant role to CO2 (whether or not of human origin) in global warming, claim that there is a consensus on this. The climate sensitivity to CO2, defined as the temperature effect of doubling the CO2 concentration in the atmosphere, plays a central role in this. In its most recent report, the IPCC gives a range of 'likely in the range 2.5°C to 4.0°C, and very likely between 2.0°C and 5.0°C (Chapter 7)'. One wonders whether such a bandwidth can still be called a consensus. But that aside.
Climate skeptics don't have a consensus culture. They are still searching. But a consensus is emerging on a climate sensitivity of one degree Celsius. But there are also skeptics who have published significantly lower values.
This includes
https://www.science-climat-energie.be/, a climate realistic site founded 5 years ago by emeritus Belgian professors.
Roland Van den Broek published a French version of this article there, which challenges the mechanism of retroradiation adopted by the IPCC, the interpretations of which can be found on many sites, in particular:
NASA:
https://earthobservatory.nasa.gov/features/EnergyBalance and
https://earthobservatory.nasa.gov/features/EnergyBalance/page6.phpthe French CNRS:
https://www.cnrs.fr/cw/dossiers/dosclim1/sysfacte/effetserre/index.htm and
https://www.cnrs.fr/cw/dossiers/dosclim/contenu/alternative/alter_etape1. .html
UCAR:
https://scied.ucar.edu/learning-zone/how-climate-works/greenhouse-effectThe author would like to thank Climategate.nl for the openness in the climate debate.
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By Roland van den Broek (civil engineer).
https://www.climategate.nl/2023/08/over-broeikasgassen/
