Next time you fill up at the pump, think about this: The move toward more environmentally friendly fuels might be pushing up the cost of gasoline.
The big driver behind the current gas price climb is a lack of capacity at the nation's oil refineries.
Building new refineries -- or even expanding existing ones -- is an expensive and time-consuming process. And now it appears that oil companies are also reluctant to do so because of a national push away from their products to biofuels such as...
Full Story