This lecture analyzes the effectiveness of Swiss climate policy in meeting emission reduction targets, highlighting the reliance on offsets and the challenges faced in sectors like transport fuels. It discusses the cost-efficiency of pollution reduction measures, the importance of equity in policy design, and the feasibility of implementing climate policies. The lecture also covers the evolution of the CO2 Law, policy measures in key sectors like transport and buildings, and the future outlook for Swiss climate policy up to 2030.