That may be correct if the only problem we are trying to solve is an environmental (specifically emissions) one. It seems to me that this should be the least of our worries. I see electric power from any source as a means of decreasing the economic load generaed by high demand for oil products as well as energy security on the national and personal level. If we run electric cars and we have a problem with getting, say, coal, we can switch our generation method to something we can get. If we are dependent on oil and we can't get any more, how do we run our cars/trucks/trains?
In these matters the only certainty is that there is nothing certain. -- Pliny the Elder