Let's clear the air: We'd prefer that you never mention anything about carbon footprints, global warming, or the ozone layer ever again. It got old five minutes after Al Gore first opened his mouth. Lest you think us environmental assholes or anything like that, that ain't the case. We just wanted it to be clear that the reason we're pimping this cab company is that its cars are absolutely spotless — as in, practically sterile — and not because its fleet is made up of 26 of those damned Prius models (albeit with a certain gas pedal snafu fixed). Sure, there's the whole thing about how Clean Air Cabs (which is run outta Washington, D.C. and launched in Phoenix last fall) cuts down on both emissions and gas usage with its smug-wagons, but we'd rather mention that we've never experienced any discarded wads of chewing gum or cigarette butts, let alone the always-deadly B.O. stank from a previous rider.