Just think about it, from about 1960s to 2012 a green cold war was on in western countries and the Rio +20 conference was the event where winners and losers were going to come up. The competitors in the different economy-environment coalitions were perfect environmentalism and imperfect environmentalism. Perfect environmentalism aims at fixing the environmental sustainability gap to achieve environmental sustainability, imperfect environmentalism aims at patching the environmental sustainability gap to achieve environmental externality management. In the end from 2012 to now the world went environmental externality management. So the question, can 2012 Rio +20 conference be taken as where perfect environmentalism lost the green cold war? I think yes, what do you think?