I’ve never heard of William Happer before yesterday. I saw a post on WUWT about an article he wrote, and I checked it out, but it was quite long so I put it aside. Then today, I saw Morano headline the article. Figuring there must be something of interest in there, I sat down to read the entire piece.
It is excellent, and I highly recommend reading it. It is here.
For one of the best and most concise synopsis of the issues, read this paragraph:
Let me summarize how the key issues appear to me, a working scientist with a better background than most in the physics of climate. CO2 really is a greenhouse gas and other things being equal, adding the gas to the atmosphere by burning coal, oil, and natural gas will modestly increase the surface temperature of the earth. Other things being equal, doubling the CO2 concentration, from our current 390 ppm to 780 ppm will directly cause about 1 degree Celsius in warming. At the current rate of CO2 increase in the atmosphere—about 2 ppm per year—it would take about 195 years to achieve this doubling. The combination of a slightly warmer earth and more CO2 will greatly increase the production of food, wood, fiber, and other products by green plants, so the increase will be good for the planet, and will easily outweigh any negative effects. Supposed calamities like the accelerated rise of sea level, ocean acidification, more extreme climate, tropical diseases near the poles, and so on are greatly exaggerated.
That is practically my exact same position, except I might put a line in there emphasizing just how little we actually know about the climate, and how “other things being equal” isn’t likely to happen.
Go read it.