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This World Resources Institute working paper analyzes four scenarios to determine how developed countries can meet the 2009 Copenhagen commitment to mobilize $100 billion annually by 2020 for climate action in developing countries. The analysis projects that reaching the target will likely require a combination of public finance sources and leveraged private sector investment, while noting a persistent imbalance where mitigation finance far outweighs adaptation finance.

This research paper analyzes quantitative scenarios to determine which combinations of public and private finance sources could enable developed countries to meet the $100 billion annual climate finance goal by 2020, as committed during the 2009 Copenhagen UNFCCC meeting.