UPSC Civil Services 2015 Prelims General Studies Paper I

The United Nations Conference on Environment and Development (UNCED), also known as the Rio Summit or Earth Summit. It was a major United Nations conference held in Rio de Janeiro from 3 to 14 June 1992. In 2012, the United Nations Conference on Sustainable Development was also held in Rio, and is also commonly called Rio+20 or Rio Earth Summit 2012.