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Companies are quickly jumping into the electric car market to get ahead of the coming technological curve. But advertisements depicting these new advancements as completely ecological friendly or “green” leave out one key bit of information: where does all that electricity come from? Most of the United States still depends heavily on coal-fired electric power plants for their electricity needs. That means that every electric car that gets plugged into a home or roadside charging station generally gets that power from a coal plant, meaning all those “green” cars are actually helping produce the very CO2 emissions they’re promising to eliminate. Until electricity can be produced more efficiently from a green source like nuclear power, promises of eco-friendly electric vehicles are a bit more smoke than substance.