Prosperity for many or misery for all?

This week, world leaders will gather in Brazil for the Rio +20 Summit to decide what kind of future we want. Twenty years after the original earth summit, the theme is the green economy in the context of sustainable development and poverty eradication.

Why is the conference important and why the aspirations for a 'green economy'? A green economy is one that results in improved human well-being and social equity, while significantly reducing environmental risks and ecological scarcities...