I think what's up with the climate change denialists is that most of the driving force behind them is the fossil fuel industry.

you know--the very guys who stand to lose big time if we stop dumping excess CO2 into the air.

"Business as usual" is making the fossil fuel industry literally billions of dollars--and they stand to lose most of it if we quit using fossil fuels--which in the long term is basically the only answer I can see to the CO2 problem.