The environmental impact of electric cars may still be unknown, but leaders are growing concerned about the threat they pose to the financing of the nation’s highway system. Because freeways and bridges are funded, in large part, through federal and state taxes on gasoline and diesel fuel, the battery-powered future will test whether roads can just be paved with good intentions.
Read MoreCommentary: Electric Car Drivers May Not Be Pumped over Privacy-Jolting Mileage Taxes
