What historians will definitely wonder about in future centuries is how deeply flawed logic, obscured by shrewd and unrelenting propaganda, actually enabled a coalition of powerful special interests to convince nearly everyone in the world that CO₂ from human industry was a dangerous, planet-destroying toxin. It will be remembered as the greatest mass delusion in the history of the world – that CO₂, the life of plants, was considered for a time to be a deadly poison. ~  Professor Richard Siegmund Lindzen of the Massachusetts Institute of Technology.

http://www.azquotes.com/quote/1386476

“We Have Nothing to Fear from CO2,” booklet in pdf form by Donn Dears, here is the link…

http://ddears.com/wp-content/uploads/2018/01/Supplement-NTF-from-CO2-with-correction-sent-to-Karl-Brochure.pdf