What will replace fossil fuel? Is there a way forward using renewable energy sources while avoiding nuclear power? This book argues that nuclear is unlikely to have much of a role in future, and shows that the pro- and anti-nuclear debate has absorbed too much time and energy over the years. This has been to the detriment of a more relevant, interesting and increasingly urgent debate over what sort of renewable/efficiency mix we need. This book engages in that debate, exploring the implications of shifting to greener, cleaner energy sources. Importantly, David Elliott argues there is no one green future. There is a range of possible options of various types and scales: we need to choose amongst them. This book offers an overview of the technical, economic and environmental issues to help scholars, professionals and policy makers involved in discussing those options.