This inspiring book presents the true stories of 12 people, most of them teenagers or younger adults, from across North America who have done great things for the environment. Heroes include a teenage girl who figured out how to remove an industrial pollutant from the Ohio River, a Mexican superstar wrestler who works to protect turtles and whales, and a teenage boy from Rhode Island who helped his community and his state develop effective e-waste recycling programs. Plenty of photographs and illustrations bring each compelling story vividly to life.