I'm not entirely off-topic though. Many people when they hear the term "green economy" think of solar panels or windmills. That's part of it. But from a larger perspective it is the market returning to principles of financial sustainability -- thinking long-term about the consequences of deregulation in a world filled with risks, both social, fiscal and (of course) environmental.
To read a bit more about this connection, you can check out my post Green Phoenix: as one market collapses a new one is born.