Whenever fuel prices start going up, people en masse start turning enviromentalist and the chrorus calling for energy conservation starts to hold sway.
With 50 years left of the juice, the more that can be done to not use it up, the more that can be done to not use it up.
Higher prices might force some to take only 1 trip to the Walmart per day instead of 2 or 3, but no worries, obesity ain't seeming to be going away quite yet,,,