Fred Krupp is the president of Environmental Defense Fund, and together with Miriam Horn, he has just released an optimistic book about how we can reduce global warming. Earth: The Sequel—The Race to Reinvent Energy and Stop Global Warming is a field guide to innovation in the alternative energy industry. According to Krupp, the U.S. government can unleash a tidal wave of new innovations into the marketplace by passing a cap and trade law. Not familiar with cap and trade? Get up to speed by reading the Cool Friends interview.
