From driving his biodiesel station wagon to educating local PTAs about sustainability for schools, Christopher Gavigan eats, breathes and lives green. The CEO of Healthy Child Healthy World, an organization devoted to protecting children from environmental dangers, Gavigan recently celebrated the birth of his fi rst child with his wife, actress Jessica Capshaw.

His book, Healthy Child Healthy World: Creating a Cleaner, Greener, Safer Home, hit shelves in April. If the actionable tips and useful information on everything from beauty products to pet care don’t convince you to pick it up, consider the star power. With a foreword by Meryl Streep and testimonials from Tom Hanks, Michelle Obama and Gwyneth Paltrow (to name a few), Gavigan must be doing something right.