Thursday, October 12, 2017
Why is the claim that greenhouse gases warm up the Earth by 33°C wrong
The claim that greenhouse gases warm up the Earth by 33°C refers a joint statement by national academies of Brazil, Canada, China, France, Germany, India, Italy, Japan, Russia, UK and USA in 2005: “the existence of greenhouse gases in the atmosphere is vital to life on Earth – in their absence average temperatures would be about 30 centigrade degrees lower than they are today.” This claim has been widely endorsed since by numerous academic institutions including the IPCC around the world.
However, this claim turns out false; it is simply a result of misuse of the Stefan-Boltzmann law by climate scientists. When deriving this conclusion, climate scientists made technical errors:
1) treating the Earth as a blackbody while it never is;
2) using wrong temperature quantity that is not the temperature quantity defined by the physics essence of the Stefan-Boltzmann law;
3) classifying temperatures raised by greenhouse gases as a different physical quantity outside the Stefan-Boltzmann as well as other related physics laws.
Detailed analysis is summarized in a ppt presentation, which can be downloaded from this Acribd link: