[toomuchtodo]

Electric vehicles are more efficient well to wheel than gas engines, even if powered by coal plants.

Do you want to manage the emissions from one generation source? Or 100K? Also, as the electrical grid becomes more clean, EVs become cleaner. Not so with ICE vehicles.

[stonemetal]

Actually a study from 2012 shows battery backed EVs getting 34 mpg "on the nation’s dirtiest grid". A good diesel can do much better than that. It isn't so cut and dried as you make it sound.

[toomuchtodo]

The share of wind and solar increases every year: http://www.eia.gov/totalenergy/data/monthly/pdf/sec7_5.pdf

A diesel vehicle has a service life of at least 200K miles; assuming 12K/miles a year, you're looking at ~16 years of burning petrol.

How much cleaner is the electric grid going to be over the next 16 years as coal plants are shut down due to being unable to meet new emissions guidelines? Electric vehicles future proof the energy required for mobility.