Flick on a light, turn on the tap, call a friend on a cell phone. These things make our lives easier, but at what cost? Discover how everyday conveniences can affect the environment, as well as what they can do to reduce harm This nonfiction book supports NGSS standards and explores how modern conveniences affect the world around us, and explains what we can do to reduce harm to the environment--part of the S per ciencias series. Fun...