Or we can look at it another way...
IF the greenhouse theorists are correct, then I would ask how much reduction of CO2 output is required to reverse global warming? My gut feel is that the amount of reduction required by their theory is well above any threshold we as a civilization are willing to accept.
The reasons are simple: The amount of CO2 reduction to satisfy the greenhouse theorists is significant enough to require a decrease in the world population -- NOT simply a decrease in the rate of growth. This is unacceptable economically, as the world economy is currently reliant on continuing growth to survive.
So, any CO2 tax or carbon offset scheme is ONLY another government-imposed revenue stream that will ONLY temporarily benefit government treasuries and/or a relatively few investors who already have too much money to throw around.
So, I suppose, the only remaining question is which will come first: the collapse of the world economy or the collapse of our ecosystem. I suspect the former, and by a significant margin...