A North Carolina State University study showed that a nation full of electric cars powered will make no ecological difference.<ref>[http://www.investors.com/politics/editorials/tesla-the-coal-powered-car-wont-be-saving-the-world/ Tesla, The Coal-Powered Car, Won’t Be Saving The World, Investors.com, April 4, 2016]</ref> This is due in part to its production costs, rare metal mining, energy consumed over its lifetime. | A North Carolina State University study showed that a nation full of electric cars powered will make no ecological difference.<ref>[http://www.investors.com/politics/editorials/tesla-the-coal-powered-car-wont-be-saving-the-world/ Tesla, The Coal-Powered Car, Won’t Be Saving The World, Investors.com, April 4, 2016]</ref> This is due in part to its production costs, rare metal mining, energy consumed over its lifetime. |