Every society on Earth needs vast amounts of energy to survive. Obtaining that energy has led to drastic climate change, however. By working together to conserve and efficiently use energy, we can start to reverse that problem. Inside, find out how you, your family, and your town can do a few simple things that can save energy today. The back matter; this word list contains terminology used throughout the series. Words found here broaden the reader?'s knowledge and understanding of terms used in this field.