Officially speaking, the preparatory process for the Rio+20 Earth Summit to be held in Brazil in 2012 begins on Monday, May 17. But by real measures the discussions – even negotiations – on Rio+20 have now been going on for many weeks.
Certainly, the recent meeting of the Commission on Sustainable Development (CSD-18, 3-14 May, 2010) was largely consumed by the shadows of Rio+20.
The world has already decided that there will be a “Rio+20” conference: the official title is “The United Nations Conference on Sustainable Development.” They seem hesitant to call it a “Summit,” let alone an “Earth Summit” just yet, but it is nearly certainly that eventually they will. It is, after all, the 20th year commemoration of the Rio Earth Summit of 1992, which itself had marked 20 years since the 1972 Stockholm conference.