Mexico currently ranks twelfth in the world in terms of GHG emissions. Although not bound by Kyoto Protocol greenhouse gas (GHG) emissions limits, the country is committed to fighting global warming. Mexico’s new climate change strategy proposes a graduated process that begins with GHG accounting and reporting, progresses to energy sector GHG caps, and culminates in a national cap-and-trade system linked to international GHG markets. WRI provided the GHG Protocol accounting tools that undergird the policy and provided technical consultation to the Mexican government. WRI also helped launch a Mexican industry-led voluntary GHG accounting program in 2004. WRI is working with partner organizations to replicate the model in Brazil, China, India, and the Philippines.