Think electric cars are the only form of transportation that can save the world from the dangers of the gas-powered engine? A new study warns that they could actually have the opposite effect. Gannett’s Cincinnati website cites the findings of a study to be published in the Proceedings of the National Academy of Sciences next week. In it, co-author and University of Minnesota engineering professor Julian Marshall explains the findings. “It’s kind of hard to beat gasoline [for the environment]… A lot of the technologies that we think of as being clean … are not better than gasoline.” Electric cars...