Global Politics

Rio+20: Empty Words from Environmental Summit?


UN conference on sustainable development kick off. (Photo: UN)

Diplomats at the UN environmental summit in Brazil have agreed on a call for "urgent action" on the world's environmental challenges. But critics say the draft agreement will do little to actually address the problems. Host Marco Werman talks with The World's Peter Thomson.

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(This story is based on a radio interview. Listen to the audio to hear it.)