It's an astonishing fact that capturing all the energy in just one hour's worth of sunlight would enable us to meet the planet's food and energy needs for an entire year. Project Sunshine tells the story of how scientists are working to reconnect us to the `solar economy', harnessing the power of the sun to provide sustainable food and energy for a global population of 10 billion people: an achievement that would end our dependence on `fossilised sunshine' in the form of coal, oil and gas and remake our connection with the soil that grows our food. Steve McKevitt and Tony Ryan describe the human race's complex relationship with the sun and take us back through history to see how our world became the place it is today - chemically, geologically, ecologically, climatically and economically - before moving on to the cutting-edge science and technology that will enable us to live happily in a sustainable future.