Government incentives for owners to buy more efficient vehicles.Higher efficiency standards for automakers.Bio and alternative fuelsMass transitNone of the above 2009-06-26T20:45:45Z 2009-06-29T16:00:00Z 124 What is the best way to reduce vehicle emissions and dependence on oil? 2009-06-26T20:45:00Z inactive active 2009-06-29T17:40:41Z