This is the full text of the Framework Convention, which was adopted at the United Nations Headquarters, New York on 9 May 1992. The convention was open for signature at the Earth Summit in Rio de Janeiro from 4 to 14 June 1992, and thereafter at the UN Headquarters in New York, from 20 June 1992 to 19 June 1993. By that date the Convention had received 166 signatures. The Convention entered into force on 21 March 1994.