Science Friday had some interesting segments today, including "The Secret Life of the Sonaran Desert."
It was live before an audience at (I think) Arizona State University, with Q&A, and one woman asked (paraphrasing): "I moved here in '93, and the amount of expansion into the desert is astonishing. What can we do about it?"
One of the scientists gave a rather bland answer, agreeing with her and discussing urban sprawl, etc., but I think he should have simply said, "Lady, it's expanding because you and I moved here!"
People think it's always the other guy.