Andrew Hoffman is the Holcim (US) Professor of Sustainable Enterprise at the University of Michigan and Associate Director of the Erb Institute for Global Sustainable Enterprise.

John Woody is a Deal Associate at MMA Renewable Ventures, a renewable energy firm in San Francisco. Previously, he was the Business Solutions Fellow for the Pew Center on Global Climate Change.

Climate change is one of the most pressing challenges facing the world today. And increasingly, it's become a crucial business issue. How will you and your company respond?