evidence: A pair of psychologists and an economist at the University of Turku, in Finland, have found that because the average electric vehicle (EV) owner is wealthier than the average person, they still have a bigger than average carbon footprint. [...] The vast majority of cars and trucks on the road today are still powered by burning gasoline—a primary source of greenhouse gas emissions. In response, car makers have been developing and selling EVs, which produce no greenhouse gas emissions while they are driven. [...] The researchers found that people who purchase EVs tend to be wealthier than average. They are also more highly educated and drive more miles per year on average. The researchers also found that despite buying and driving an EV, the average purchaser of an EV still had a higher carbon footprint than people who did not buy such vehicles.