Whether or not you accept AGW, how would you want to reach this goal, Politics?
Assume, for the moment, that you are to make a plan with the goal of reducing your country's CO2 emissions. Specifically, you have the targets of stopping any increase in net emissions (that is, emissions minus sequestration) in the next 10 years, cutting net emissions in half in the next 30 years, and cutting net emissions to zero or near zero in 50 years. Assume other countries (all of the major emitters, at least) have agreed to reach similar goals, and that reducing "exported" emissions (eg emissions from the manufacture and transport of manufactured goods that your country imports) counts towards your goal. And assume you can use any generally legal methods to achieve this (new or changed taxes, subsidies, laws restricting certain behaviors and/or technologies, and the like). And remember that you need to deal with both vehicle emissions, and power-plant emissions.
What, roughly, would your plan look like?