If you jam on the brakes for just a minute and take a look at cars and car culture, you just might find something stinky (maybe even as stinky as the black plume of diesel exhaust emanating from that souped-up pickup truck you’re stuck behind). Yes, there are some upsides to cars and driving, but those are overshadowed by the unbelievable downsides. Do you know how many deaths -- of people and animals -- can be attributed to the automobile? How about cars’ contribution to total greenhouse gas...