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We currently rely on nonrenewable sources, such as oil, for most of our fuel. Scientists are working on new fuels from crops and other materials to help ease future dependence on nonrenewable resources.|Index|Sources for further research|Glossary of key words|Informative sidebars|Table of contents|Author/Illustrator biography|What are the benefits of alternative energy? What impact does energy have on globalization? Power Up! looks at energy sources that are needed to power our lives while teaching readers to focus on global awareness and critical thinking/problem solving skills.