Energy efficiency commitments, often associated with tradable energy efficiency certificates, dubbed "white certificates", were recently implemented in the United Kingdom and Italy and will soon start in France. Energy suppliers have to fund a given quantity of energy efficiency measures, or to...

This paper analyses the policy relevance of the dominant uncertainties in our current scientific understanding of the terrestrial climate system, and provides further evidence for the need to radically transform - this century - our global infrastructure of energy supply, given the global...