You've heard of the seven wonders of the ancient world; now meet seven Earth-friendly marvels for the 21st century. In Seven Wonders: Everyday Things for a Healthier Planet (Sierra Club Books), author John C. Ryan explains how everyday things — including the bicycle, the ceiling fan, the ladybug and your favorite Asian dish, pad thai — can help defuse critical environmental threats. "People often feel that the problems are too big or they themselves are too small to have much of an impact," says Ryan, "but all the tools we need are right under our noses. We just need to start using them more." Witty, practical and insightful, this book meets the environmentalist's greatest challenge: convincing ordinary people that they can make a difference.
— Elisa Bosley
Photography by: Jeff Padrick