The reduction of GHG emissions is one of the largest and most pressing collective-action problems facing humanity. Addressing this transversal, trans-boundary policy challenge requires action at multiple scales of governance: from behavioral changes by individuals to modifications of local,...

The Kyoto Protocol was the first implementation of a concerted international action tackling the risks raised by climate change. In the long run, it could become the driving force of a drastic shift in the way our societies operate. The enforcement of quotas on greenhouse gas emissions and the...