Rio+20: Is this Sha Zukang and Nikhil Seth's last failure ?

Is the Rio+20 Environmental Summit a Failure?

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Obama and Cameron missing, economies crashing, a conference document that managed to displease everyone—Rio+20, marking the 20th anniversary of the famed Earth Summit, looks like a bust as world leaders arrive. Mac Margolis reports.

But add a war party of Amazonian tribesmen painted for battle and a roadblock of topless feminists protesting the “commoditization” of nature, and the makings of an urban meltdown are complete. Welcome to green gridlock, the traffic jam to save the planet...