Since an electric car releases no toxic emissions, it does no harm to the environment as diesel or petrol powered cars do. This low environmental impact is achieved by the fact that they have no exhaust or petrol tank, making them clean in terms of emissions. Compared to gas powered cars, which often emit large amounts of toxic carbon dioxide and benzene into the atmosphere, an electric car is a clean model that operates on a renewable source of electrical energy. Therefore, it does not harm the ozone layer nor does it create any greenhouse effect, which is harmful to the environment.