While it is possible to track and adjust tax levels over time to meet emissions goals, few jurisdictions have implemented such practices. British Columbia designed its new carbon tax with tracking and adjustments in mind, but the tax is so new, there has been no practical experience adjusting the tax level to meet emissions goals. Remaining to be seen are whether raising carbon tax levels entails political difficulties and how progress toward emissions goals will be evaluated; however, taxes designed with tracking and adjustments in mind hold promise as another means of achieving GHG emissions reduction goals.