Rio de Janeiro is a city of U-turns. The most frequent road sign is “Retorno” – “return”. And Rio+20 at the start of the summer followed that pattern. It was a great U-turn in terms of our collective responsibility to protect the life-sustaining processes of the planet.

Twenty years ago at the Earth Summit, legally binding agreements to protect biodiversity and prevent catastrophic climate change were signed: the Convention on Biological Diversity and the United Nations Framework Convention on Climate Change propelled governments to start shaping domestic laws and policies to address two of the ...


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