As our worlds population grows, so to does our need for energy. Scientists seek the next breakthrough in new technology while constantly finding ways to make current solutions cheaper and more efficient. In this title, discover what biomass energy is, its history, how we use it today, and how new technologies can contribute to our energy future. Learn about cutting-edge biofuels, including ethanol, biodiesel, and fuels from switchgrass and algae, and technologies that allow us to turn waste into energy.