 CBC.ca | Rio + 20 Summit opens with promises, criticisms CNN International Rio de Janeiro (CNN) -- World leaders poured into Rio de Janeiro on Wednesday, 20 years after the landmark Earth Summit, to commit themselves to a new roadmap for sustainable development -- with that roadmap already under fire for failing to set firm ... Rio+20 welcomes heads of state, but change driven at local level Climate change to worsen hunger as UN's Rio+20 begins Rio+20 summit kicks off under a cloud of criticism |
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