You sound like you haven't ready any of the leading evidence or arguments for climate change at all.
>Analysis based on previously published relationships linking emissions to warming and warming to rise indicates that unabated carbon emissions up to the year 2100 would commit an eventual global sea-level rise of 4.3–9.9 m
Boils down to if you believe the authors are giving an unbiased viewpoint. They receive funding from someone, no? Do those sources benefit from taxing emissions?