Center for International Forestry Research (also on behalf of the International Centre for Research in Agroforestry), and John Parrotta, International Union of Forest Research Organizations, on the initiative by those bodies on science in the context of the post-2015 development agenda. Mention of such a symbol indicates a reference to a United Nations document. We stress the vital role and significant contribution of all types of forests and of trees outside forests in achieving sustainable development, including economic development, social development and environmental protection.