Leaders of the IMF, the World Bank and the OECD have all stated that climate change is the principal economic issue facing the world this century. There is a growing realization among the world's economic decision makers that the shift to a low-carbon economy is not only a necessity, but also may be less costly than we believe. The need to identify both public and private financing solutions is the greatest hurdle facing the Paris COP. CIGI's climate change research is tackling the issue of financing sustainable development, in addition to how agreements can be reached by smaller countries, how to address the problems of the delayed benefits from mitigation, ways that China can exercise leadership in this arena, and how the world's financial institutions can help mobilize climate finance from the private sector.