Summit County Citizens Voice:- Worldwide rallies held to combat global warming


I left the following comment at

A scientist untainted by the AGW lobby would say that a concentration of about 1000ppmv would be beneficial to life on earth, this being the concentration that Glass House growers prefer*cWuzeO4qmDVbgA_/Greenhouses.CarbonDioxideInGreenhouses.pdf
Our exhaled breath is about 4500ppmv , up to 5000ppmv is acceptable for work places (American Conference of Governmental Industrial Hygienists.), 3000ppmv for residences (Canadian exposure guideline for residential buildings)”

Is the AGW science settled?

Well read this letter for a start.




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