Excuse me while I pop my organic vegetables in the oven and wipe my hands on recycled kitchen roll. I'll only be a moment. Now, I'm ready to tell you all about the reasons why wonderful people like me just love to buy eco-friendly products.
An engineer at the University of Michigan thinks our cars just have it too easy. Instead of sitting idle for hours in parking lots, they should be earning their keep by helping store power for the electricity grid.