It wasn’t too long ago that corporations were the villainspolluting the environment, exploiting workers, and consuming energy and other resources without concern for long term consequences to the planet. However over the past few years many companies have transformed themselves from bad guys into champions of social change and ecological consciousness. For example, GE has gone from despoiling the Hudson River to jumpstarting the electric car industry through its commitment to purchase tens of thousands of zero emission vehicles. Similarly, Nike went from being vilified for its unfair treatment of workers to being applauded for setting industry standards for overseas working conditions.