In 1992, at the age of 12, Severn Cullis-Suzuki and her friends traveled to 1992’s Rio Earth Summit, where she gave a powerful speech that deeply affected the leaders who heard it. She became known as “The Girl Who Silenced the World for 5 Minutes.” She hasn’t stopped since, starting several groups and projects and becoming a dynamic, luminous light in a new generation of eco-leaders. She says: “Each individual really does count. And the more I've thought about it, the more I've realized that each person is a role model to all the people around us. That's how cultures evolve and things become cool--the influence of a few individuals that catches on.”

What change can YOU make?