This document analyzes carbon mitigation policies that could help the city of Austin achieve its goal of net-zero carbon emissions by 2050. It discusses cap-and-trade systems and carbon tax systems, providing case studies of jurisdictions that have implemented each approach. While both approaches have advantages and disadvantages, the document concludes that a carbon fee system is best suited for Austin's economic and industrial interests, as fees collected could fund initiatives to reduce emissions from transportation, electricity usage, and other sectors.