Fossil fuels are today essential for modern society: our transport systems and electricity production are largely dependent on this finite resource. Projections based on current consumption say that we could run out of oil shortly after the middle of this century. This and the growing problem of global warming mean that we need to take action now. We can's go on burning fossil fuels for ever. This book examines the alternatives and shows us that it is quite possible to generate electricity and run transport without fossil fuels, helping us secure the future of our planet.