Tens of thousands of U.N. officials, government representatives and activists will head back to Rio de Janeiro this summer in an attempt to advance the “sustainability” cause.
In what the world body’s Division for Sustainable Development says will be the biggest conference ever organized by the U.N., some 135 heads of state and government (or their deputies) have committed to attend the June 20-22 Conference on Sustainable Development, dubbed “Rio+20.”
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