In late June, the United Nations Conference on Sustainable Development was held in Rio de Janeiro, Brazil, two decades after its predecessor, the 1992 Earth Summit, was held to advance sustainable development through international cooperation. The "Rio+20? event drew the attendance of more than 100 Heads of State, and the top-level negotiated result from the conference was captured in a 53-page document called "The Future We Want."
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Rio+20 and the Future of Clean Energy