I Like It When People Think Like Me...

So, I saw this graphic about the amount of U.S. pollution scrubbed by trees (the darker the more pollution that has been scrubbed).



I think: Great. Trees scrubbing polllution is great, but...



And the first comment finished my thought. Isn't this basically the same as a map of forest density in the US?





(Of course, it also makes practical sense. More trees = more scrubbing...)