World Resources Institute: At the 2009 U.N. climate change conference in Copenhagen, developed nations committed to provide a collective $100 billion per year by 2020 to help developing countries mitigate greenhouse gas emissions and adapt to climate changes impacts. Recently, the Organization for Economic Co-Operation and Development (OECD) released some surprising new data on this pledge. The figures indicate that developed nations recent climate finance contributions have fallen rather than risen toward the level of their...