Here's an actual study [1] from 2015, as opposed to hearsay, that suggests +$3.80/gal for gas and +$4.80/gal for diesel to represent the environmental damage. [

Here's an actual study [1] from 2015, as opposed to hearsay, that suggests +$3.80/gal for gas and +$4.80/gal for diesel to represent the environmental damage. [1] http://link.springer.com/article/10.1007%2Fs10584-015-1343-0 http://link.springer.com/article/10.1007%2Fs10584-015-1343-0