Mexico has assigned a high political priority to tackling climate change. It has shown great leadership in, and a strong commitment to, supporting international efforts to address climate change. This chapter reviews its progress in strengthening its institutional, strategic and legal frameworks on climate change. It analyses the opportunities to improve the effectiveness and cost-efficiency of measures implemented in the energy and transport sectors, including those to promote renewables and energy efficiency. The potential to reduce non-energy-related emissions, including from deforestation and forest degradation, is also addressed.