(CNN) -- As delegates ended the three-day Rio+20 summit with a 53-page statement called "The Future We Want," activists slammed the U.N. conference on sustainable development as a "failure of epic proportions."
The Group of Twenty Finance Ministers and Central Bank Governors (G-20, G20, Group of Twenty) is a group of finance ministers and central bank governors from 20 major economies: 19 countries plus the European Union, which is represented by the President of the European Council and by the European Central Bank.