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by Stephanie Neil, MA Editorial Staff   Electric automobiles, wind power, bio-fuels, fuel-cell technology, flywheel energy storage — these are all alternative sources of energy. Where did they come from? Need, of course.
"Necessity is the mother of invention," the classical Greek philosopher, Plato, said. The green movement is pervasive these days. As a result, companies feel the need to act socially responsible, which often, out of necessity, leads to innovation.
Reducing gasoline consumption in a car, for example, has engineers looking at new ways to power that piece of metal. And what about that metal? It has mercury in it. What happens when the car goes to the graveyard? These are issues Daimler, Ford, Toyota, and others are thinking about.
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