Silly you. Didn't you know that SUV originally stood for "SUmerian Vehicle"??
After the onset of drought, the Sumerians changed their vehicles from internal combustion to horse-drawn, but alas! -- it was too late for their "green" technology to affect the weather and the solid pollution was a misery to those who still walked in sandals. Yea, verily, those who forget history are doomed to repeat it.