The contrast could not have been greater. I had spent the whole day attending the Rio+20 Business Day, held in a luxury hotel on the beach side, listening to one business speaker after the other argue that voluntary initiatives by industry, if scaled up, are the solution to the world’s social and environmental crisis. When I took the bus back to the other side of Rio de Janeiro, I didn’t get off in time and found myself in an unknown street, where my attention was caught by drumming and a loud amplified voice. In the square nextdoor there was a demonstration, a thousand or more people