the wedge game

I don't know how many of you are familiar with this, but I learned about the wedge game in a previous environmental science class last term.

http://www.npr.org/templates/story/story.php?storyId=11253361

Here is a link where you can read more about what it is. Basically, it is a way to approach global warming as a game. You have wedges that all fit into the shape of a triangle and each wedge is a way to reduce global warming. Their main categories are:

1) No CO2 cost (renewable) - wind, nuclear, solar, waves, and geothermal energy resources
2) Efficiency - cars get more miles per gallon, energy efficient light bulbs, etc.
3) Biofuel
4) Pull CO2 out of the air - filters
5) Put the CO2 back into the ground rather than the air

There are many individual approaches that might fall into one of those categories, but the key is that you need all of these to actually have an effect on global warming. Solving one of these issues will reduce it, but not to a level that is acceptable. Another key to the game is getting everyone to work together - clearly not just one person can change global warming. Therefore, if everyone can help with their contribution, then that'd be one step closer to solving this problem.