In partnership with the Presidio School of Management, GreenBiz.com is proud to present The Sustainable MBA: each month, an expert from the Presidio's Green MBA program explores the fast-changing world of sustainable business practices.
Terry Cullum, General Motors' director of corporate responsibility, talks to GreenBiz Radio about how the company addresses sustainability in ways above and beyond their vehicles, as well as how the company is looking to shift strategy and production to meet the rapidly changing demand for small cars in the U.S.

In this landmark report, Joel Makower and the editors of GreenBiz.com answer the question: How are U.S. businesses doing in their quest to be more environmentally responsible? It introduces the GreenBiz Index, 20 indicators of progress, tracking the resource use, emissions, and business practices of U.S. companies: carbon, materials, energy, and toxics intensity, clean-tech investments, e-waste recovery, paper use, employee commuting, and more.