I really hope it works out the way that article says. One of the comments to that article though underscores just how little the average U.S. consumer understands about how economical and environmentally friendly diesel can be:
"Still not green in the slightest"
The methods used to make electric car batteries are not green, and the disposal of those batteries once they burn out, and they will eventually burn out (its not if but when), is an even dirtier deed. Hybrid cars supposedly offer the best of both worlds, but the problem is that it isn't any cleaner to manufacture an electric motor than it is to manufacture a gas motor, and with all the added weight from having two motors in one car you could just put a slightly more powerful motor in it and basically get the same effect. On top of that, neither of those kinds of vehicles motors will last as long as a diesel motor will. Its in how they are engineered. Gas motors, and electric motors, don't have to handle the compression load that diesel motors do, and they aren't built up for it.
Diesel motors are built to handle high compression, they have heavier components that last longer and can take more abuse than a gasoline engine. And with diesels being generally so heavily built up they can take turbos without the need to add stronger components to handle the higher compression because the motor is already designed to handle it. By the time you will have replaced two hybrid vehicles, a diesel powered vehicle will still be running strong. Add to that modern diesels are more user friendly than diesels of old (not needing to warm up in the same way as the older diesels did, and they basically have the throttle response of a car), and are about 30 - 40% more fuel efficient than a gasoline engine, I don't see how you could get much greener.