Rio+20: 5 key takeaways

Here are some of the promising developments and bigger disappointments of the Rio+20 global sustainability conference, which ends today.

Fossil fuel subsidies

On the face of it, the failure to explicitly call for an end to fossil fuel subsidies in the nearly 50-page conference text was cited as a major failure, leading to a Twitter campaign of more than 100,000 Tweets. But Mr. Shultz says that the world is talking about it – underlined by the Twitter campaign and far beyond – and that it's one of the most promising developments in terms of the public coalescing around an idea towards a sustainable future.

“There is a clear consensus that the first order of business is to get rid of subsidies for gas and oil and carbon,” he says. “I think that everybody from the World Bank to leftists in Latin America are talking about that.”

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