A new breed of entrepreneurs is making progress in solving social and environmental challenges that many have been struggling with for decades. Growing Opportunity: Entrepreneurial Solutions to Insoluble Problems, a report launched today by SustainAbility, Ltd. at the 2007 Skoll World Forum on Social Entrepreneurship, explores how business partnerships with these ‘social entrepreneurs’ offer benefits to both companies and communities...Through a quantitative survey of 100 social entrepreneurs around the world...the report provides specific examples of entrepreneurial approaches to intractable problems with a particular emphasis on the health care and energy sectors.