On 1 June 2012, the United Nations Postal Administration issued three commemorative stamps on the theme "RIO+20". A souvenir card was also released on the same day.
The UN General Assembly adopted a Resolution agreeing to hold the United Nations Conference on Sustainable Development in 2012. Also referred to as "Rio+20" or Earth Summit 20, the conference takes place in Rio de Janeiro, Brazil, on 20-22 June 2012 to mark the 20th anniversary of the 1992 United Nations Conference on Environment and Development, held in Rio de Janeiro, and the 10th anniversary of the 2002 World Summit on Sustainable Development held in Johannesburg.
The objectives of the Conference are to secure renewed political commitment for sustainable development; to assess the progress to date and the remaining gaps in the implementation of the outcomes of the major summits on sustainable development; and to address new and emerging challenges.
The Conference will focus on two specific themes: "A green economy in the context of sustainable development and poverty eradication" and "an institutional framework for sustainable development". Sustainable development emphasizes a holistic, equitable and far-sighted approach to decision-making at all levels. The concept of green economy focuses primarily on the intersection between environment and economy.