Bruce Usher is the Elizabeth B. Strickler'86 and Mark T. Gallogly'86 Faculty Director of the Social Enterprise Program at Columbia Business School in New York City, where he teaches MBA students on the intersection of finance, social and environmental issues. He is also Chairman of Persistent Energy Partners, an impact investment firm dedicated to financing clean energy businesses in Africa, with offices in the U.S., Ghana and Tanzania. From 2002 to 2009, Usher was CEO of EcoSecurities Group plc, during which time he built it into the world’s largest carbon credit company. Usher led EcoSecurities through an IPO, a secondary public placement and strategic investment, and the sale of the entire company to JP Morgan in December 2009. EcoSecurities developed more than 400 projects in 36 countries, representing approximately 10% of all projects approved by the United Nations under the Kyoto Protocol. Prior to EcoSecurities, Usher was co-founder and CEO of TreasuryConnect LLC, which provided electronic trading solutions to banks and was acquired in 2001. Prior to that, he worked in financial services for fifteen years in New York and Tokyo. He is a director of Community Energy, a US solar project development company, and an active investor in renewable energy businesses. He earned an MBA with distinction from Harvard Business School.