Brazil: Climate Pioneer by Accident

Rio: Birthplace of the UNFCCC (1/13)

View of Rio de Janeiro above Corcovado mountain, where WWF erected a giant water faucet on World Environment Day in 2005. In 1992, Rio was the site of the landmark United Nations Earth Summit that helped put the problem of global warming on the international agenda. It was at this conference that over a hundred nations agreed to the UN Framework Convention on Climate Change (UNFCCC), a treaty aimed at reducing greenhouse gas emissions. (Photo: Reuters)