Sustainability :

U.N. Foundation's Wirth discusses challenges ahead of Rio+20 conference

As developed nations continue to struggle economically, how will financial tensions shape the United Nations' upcoming Rio+20 conference? During today's OnPoint, former Sen. Tim Wirth, president of the U.N. Foundation, previews the U.N. Conference on Sustainable Development and weighs in on the key issues that will be considered at the conference.