Greendex

You've read the news—everyone wants to be green now. But do you really know how your personal choices are adding up? What about the choices of your fellow citizens? How well are people around the globe adopting behaviors that can make the world a more environmentally sustainable place?

National Geographic and the international polling firm GlobeScan have just conducted a study measuring and monitoring consumer progress toward environmentally sustainable consumption in 14 countries around the world.

Americans ranked last and were least likely to choose the greener option in three out of four categories - housing, transportation, and consumer goods.

See the overall survey results and then calculate your personal Greendex.

There's also a six question quiz to test your overall knowledge of environmental issues.