11 Nov Nothing can compete with renewable energy, says top climate scientist

Most countries have already made voluntary pledges to roll out clean energy and cut carbon emissions, and Prof John Schellnhuber said the best hope of making nations keep their promises was moral pressure.

“If some countries really honour their pledges, including China, Brazil, South Africa, US and Europe, I think we will get a dynamic that will transform the development of the century. This is not sheer optimism – it is based on analysis of how incumbent systems implode.”