| http://www.w3.org/ns/prov#value | - United Nations Conference on Sustainable Development, Rio+20 (20-22 Jun 2012) Posted by post2015 ??? March 27, 2012 When: 20 ??? 22 June 2012 Where: Rio de Janeiro, Brazil Organiser: UN At the Rio+20 Conference, world leaders, along with thousands of participants from governments, the private sector, NGOs and other groups, will come together to shape how we can reduce poverty, advance social equit
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