A sign announces that the power generators at the conference run on 20% Brazilian biodiesel. United Nations Conference on Sustainable Development (Rio+20), Rio de Janeiro, Brazil, 14th June 2012. Photo © Sue Cunningham.

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Size: 4120px × 2742px
Location: Rio de Janeiro, RJ, Brazil
Photo credit: © Sue Cunningham / Alamy / Afripics
License: Licensed
Model Released: No

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