For an excellent summary of the outcomes of Rio+20 (the United Nations Conference on Sustainable Development in June 2012), see the article by Maria Ivanova "The Contested Legacy of Rio+20" at http://uncsd.iisd.org/guest-articles/the-contested-legacy-of-rio20/.
Blog at International Environment Forum
IEF at Rio+20
Rio de Janiero, June 2012
RIO+20 started and we are all participating in many different events, dialogues and discussions!