The Obama administration has given high priority to development of alternative energy sources.The world relies on fossil fuels to power our cars, heat our homes, grow our food, and make many of the products we use everyday. Through objective overviews, primary sources, and full-color illustrations this title examines Is the World Running Out of Fossil Fuels? Does Fossil Fuel Use Threaten the Environment? How Does Fossil Fuel Use Affect National Security? Can Alternative Energy Sources Replace Fossil Fuels?