Despite decades of unprecedented growth and the expansion of capitalism into most of the world, prosperity has only spread to a fraction of the earth's population, while pollution and environmental degradation have encircled the globe. As Stuart Hart proposes in Capitalism at the Crossroads: Aligning Business, Earth, and Humanity (Wharton School Publishing, ISBN: 0136134394), the most powerful institutions in the world, the multinational corporations, have a unique opportunity to devise the innovations needed to create a sustainable form of global capitalism-and profit in the process.