Paul Hawken is an environmentalist, entrepreneur, journalist, and author who has dedicated his life to sustainability and changing the relationship between business and the environment. His practice has included starting and running ecological businesses, writing and teaching about the impact of commerce on living systems, and consulting with governments and corporations on economic development, industrial ecology, and environmental policy. Paul Hawken has written seven books, which have been published in more than fifty countries and twenty-nine languages. Natural Capitalism, coauthored by Hawken, was cited by President Bill Clinton as one of the five most important books in the world.