The energy report : 100% renewable energy by 2050

From introduction: "WWF has a vision of a world that is powered by 100 per cent renewable energy sources by the middle of this century. Unless we make this transition, the world is most likely to avoid predicted escalating impacts of climate change. But is it possible to achieve 100 per cent renewable energy supplies for everyone by 2050? WWF called on expertise of respected energy consultancy Ecofys to provide an answer this question. In response, Ecofys has produced a bole and ambitious scenario - which demonstrates that it is technically possible to achieve almost 100 per cent renewable energy sources within the next four decades. The ambitious outcomes of this scenario, along with all of the assumptions, opportunities, detailed data and sources, are presented as part 2 of this report."