The un-greening of electric vehicles

It seems that something I've assumed for some time has been scientifically supported. Electric vehicles are not 'greener' than other vehicles, especially diesel vehicles. This is when you consider the entire system, not simply the vehicle itself. The generation of electricity and transportation of it can be less efficient and more damaging to the environment than the vehicle generating its own power. Furthermore, the manufacture of the batteries for electric vehicles, especially considering their limited lifespan, are very toxic and can be damaging proposition for the environment. A Norwegian University study confirms this. However, this depends on the type of energy being generated that you would consume. The EU, for example, uses more sustainable energy sources than the U.S. or China. Lithium is recyclable and the electrolytes within the batteries are common salts. The production and transportation of gasoline and diesel consumes energy as well, making that system less efficient. Nonetheless, these are some interesting things to consider.