Alternative Energy Sources

"The ethanol plants of today will be the biorefineries of tomorrow. The days of big oil are coming to an end." Did you know that the Earth's known supply of oil and gas will last only another 30 to 50 years? And that instead of using less of these disappearing resources, we are actually using more every year? So, are there any alternatives that are cheap, renewable, and won't harm the world we live in? Science at the Edge: Alternative Energy Sources looks at the different options for replacing fossil fuels. It examines the pros and cons of biopower and wind, wave, solar, geothermal, and nuclear energy. It also explains how continuing research and development, as well as decreasing costs, are catching the interest of people and governments looking for alternative forms of energy. The Science at the Edge series is about development and theories in science that are both interesting and sometimes cause for concern. Each book in the series explains how the science was discovered, how it works, how it can help people, and why it may not be completely accepted by everyone.