according to unc professor charles courtemanche, for every $1 up in gas prices, there's a 10% reduction in obesity rates.." $8 at 8 dollars a gallon steiner sees the death of the legacy airlines like american.... and united $8 a gallon will be the death of most of our airlines. american, united, gone. we'll be left with southwest and jetblue serving most of our domestic capacity." and while the loss of a number of airlines and the loss of jobs associated with them may be hard to swallow, steiner believes it will help bring families closer together. "families will live closer together. people will think twice about moving to the west coast if their from the east coast. you're going to risk seeing your family just once or twice a year." $10 steiner forecasts the world when gas reaches double digits in a parking lot full of the typical cars we see today, "at 10 dollars a gallon, people will start buying different types of cars. and i don't mean they'll stop buying suv's, they'll have long stopped doing that, at $10 per gallon they'll be buying electric cars because then it will start makin