CO2 is not a significant greenhouse gas

"Charles Keeling, another researcher at the Scripps Oceanographic Institute, set up a system to make continuous CO2 measurements. His graph of these increases has now become known as the Keeling Curve. When Charles Keeling died in 2005, his son Ralph, also at Scripps, took over the measurements. Here is what the Keeling curve shows: an increase in CO2 from 315 parts per million in 1958 to 385 parts per million today, an increase of 70 parts per million or about 20 percent.

All the computer models, all of the other findings, all of the other angles of study, all come back to and are based on CO2 as a significant greenhouse gas. It is not. Here is the deal about CO2, carbon dioxide. It is a natural component of our atmosphere. It has been there since time began. It is absorbed and emitted by the oceans. It is used by every living plant to trigger photosynthesis. Nothing would be green without it. And we humans; we create it. Every time we breathe out, we emit carbon dioxide into the atmosphere. It is not a pollutant. It is not smog. It is a naturally occurring invisible gas.

Let me illustrate. I estimate that this square in front of my face contains 100,000 molecules of atmosphere. Of those 100,000 only 38 are CO2; 38 out of a hundred thousand. That makes it a trace component. Let me ask a key question: how can this tiny trace upset the entire balance of the climate of Earth? It can’t. That’s all there is to it; it can’t." - John Coleman