[quote=Jeffrey]... just that we are putting a lot of carbon in the atmosphere and that it does play a role in trapping more heat here than would be the case./quote]
We are shifting a lot of carbon from one reservoir in the carbon cycle to another by burning fossil fuels. That carbon does not sit in the atmosphere but rather cycles into other reservoirs. How fast the cycle runs depends on lots of things. We don't know whether the increase in atmospheric carbon dioxide is due to humans flooding the system with too much atmospheric carbon dioxide or whether it is due to other factors not related to human activity. Warming can increase atmospheric carbon dioxide levels. You can dissolve a lot more carbon dioxide in cold water than you can in warm water. Is the increase in atmospheric carbon dioxide causing the warming or is the warming causing an increase in atmospheric carbon dioxide? The increase in atmospheric carbon dioxide seems to lag behind increased temperatures in most cases. That is why I warned not to confuse correlation with cause-and-effect.
Look at the entire system to try to understand how it works. Concentrating on one part of the very complex system can lead to very incomplete answers.
