Greenhouse Gas Emissions
I love Google’s public data explorer, which has lots of records from around the world and powerful visualization and mapping tools.
Here’s a map of greenhouse gas emissions:
Here’s a map of greenhouse gas emissions per capita:
Double-click to zoom in and see the differences. Notice that Wyoming fights above its weight in terms of the amount of emissions vs. its population. Per-capita analysis often is needed when analyzing data. Otherwise, you just get a population map.