This is quite long but the guy is a scientist and he says.................
“CO2 is a very essential and natural part of life,” Happer says. “It is the gas of life. We’re made of carbon after all, mostly carbon, and we breathe out a lot of CO2 a day just by living. Each of us breathes out about 2 pounds of CO2 a day. Multiply that by 8 billion people and 365 days a year, and just [by] living, people are a non-negligible part of the CO2 budget of the Earth.
Nevertheless, we are living through a crusade against so-called pollutant CO2. People talk about carbon pollution. [But] every one of us is polluting Earth by breathing, [so] if you want to stop polluting ... apparently God wants us to commit suicide ...
We're doing all sorts of crazy things because of this alleged pollutant ... more and more beautiful meadows are being covered with black solar panels. It doesn't work very well; it doesn't work at all at night. It doesn't work on cloudy days. It doesn't work terribly well in the middle of the winter because of the angle of the sun.
But nevertheless we're doing it. We’re being misled into climate hysteria, and if you haven't read this book, I highly recommend it. It was published first in 1841, called ‘Extraordinary Popular Delusions and the Madness of Crowds.’ It’s as relevant today as it was then ...
I'm a physicist. I'm proud to say that no one could call me a climate scientist, but I know a lot about climate and I was a coauthor of one of the first books on the effects of carbon dioxide 41 years ago. This was a study done by the Jason Group which I was a member of. I was chairman for a while and it had really good people there.”