Human FootprintBy: Ellen Kirk What is your human footprint? Well, it's 13,056 pints of milk, 28,433 showers, 12,888 oranges, 14,518 candy bars, and $52,972 worth of clothes, all in one lifetime. Makes you want to step more lightly on the planet! Perfectly timed for Earth Day, this book doesn't preach or judge, but simply shows kidsin an exciting, visual wayhow humans interact with the environment and how we can lessen our impact. Astonishing photography captures the