Agence France-Presse: Twenty years after the first Earth Summit, a renewed bid to rally the world behind a common environmental blueprint opened on Wednesday in Rio de Janeiro against a backdrop of discord and economic gloom. Kicking off the so-called Rio+20 summit, Dilma Rousseff, president of host nation Brazil, called on "all countries of the world to commit" to reaching an accord that addresses the most pressing environmental and social woes. The UN conference, which marks the 20th anniversary of the Earth Summit...
URL: http://www.iol.co.za/scitech/science/environment/rio-20-summit-to-broach-climate-woes-1.1318865#.T91GG3Bgo7A
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