This gives an overall flat line appearance to the CO2 detected in the past, especially the last 2000 years, where diffusion is highest.
Don't be mislead by the ice core CO2 joke, it's designed to deceive. Plenty of science on the diffusion of CO2 in ice, search google scholar for more.
Another factor is the change to the CO2 measurement technique, a dastardly unscientific sleight of hand. I write about it here CO2 History Revised By The IPCC. A good video lecture at the link, if you are so inclined.
How on Earth can we expect a population that thinks “We the People” appears in the Gettysburg Address, can at all understand diffusion?
It is easy to fool the uneducated. Ice is solid, right? Nothing can go through a solid, right? So the CO2 is fixed in place forever. It is easy to pull the wool over the eyes of folks poorly educated and trained to believe that perception is reality. They have never been told that at atomic distances, there is no such thing as a solid and atoms and molecules in solids are in motion all the time, leading to diffusion, even between two different solids next to each other.
Welcome to the year 2505. Lets all enjoy this episode of Ow! My B***s!.
The NappyOne