Increasing CAFE standards is only the second-best solution to greener cars

Filed under: MPG, Legislation and Policy, USA Higher CAFE standards force manufacturers to build cars that get better mileage, or at least adjust the mix of vehicles they sell. In the decades since the first set of CAFE standards were imposed, we've gone from an average fuel economy of just 13.1 mpg to a less-awful 22.5 mpg. As time goes on, that value will increase, as the Obama administration...