Here is a cartogram which adjusts country area for greenhouse gas emissions. It comes from Mark Newman [Hat tip: Eric Rasmusen] whose site also has a link to software to produce these. Check out the Worldmapper project for more of these.
What is funny about this is the power of benchmarking against area? In normal statistics, we normally benchmark against population but have no real picture of this so we have a view of fairness based on square kilometers.
Actually, it is worse than that since the world map is a projection of the surface of a sphere onto a plane and so lots of countries look smaller in area than they actually are. The picture to the right is the appropriate benchmark.