This planet is the only home we've got, and we need to protect it. We can't live without it and we're destroying it thoughtlessly. All of us want to make a difference, but we're often overwhelmed by the task ahead of us, or don't know how to begin. A living example of how one person can make a difference is Wangari Maathai. Thirty years ago, she began planting trees and changed the face of Kenya, becoming, in 2004, the Nobel Peace Prize laureate. The Green Belt Movement is a record of her achievements and a primer on setting up your own organization. It is also, however, a testament to her achievements as a woman of peace, seeding not only the means whereby we can literally keep our planet alive but also providing hope and possibility to the world's poorest.