Benefits of Programs Funded by Carbon Tax Revenues The impacts of programs funded by specific carbon mitigation measures can be quantified to determine program effectiveness. With such program evaluations, governments administering carbon taxes can change the rate or shift funds to programs that are more effective at reducing emissions. For example, each year the City of Boulder evaluates programs funded through its carbon tax. In July 2009, the Boulder City Council approved an increase in the carbon tax level and targeted the additional revenue at expanding program offerings, including energy efficiency improvements and mass transit programs. (City of Boulder 2009a).