Electric powered vehicles are designed without tailpipes as they will not give out any emissions while travelling on the road. This makes them more environmentally friendly than gasoline-powered vehicles. The statement is supported by a report from Union of Concerned Scientists whereby if you take into consideration the manufacturing of battery and its entire process including recycling and disposal; electric powered vehicles have lesser greenhouse impact than gasoline powered vehicles.
Even though electric vehicles do not give out emissions when travelling on the road, however, the resources required to make the lithium-ion battery and the source of the electricity used to charge the car does contribute to greenhouse gases.
According to UCS study, the larger the battery, the greater the vehicle range but also the greater the weight added to the vehicle and the greater emissions from manufacturing the battery. However since electric vehicles are emissions free while driving, therefore the amount of emissions that they produced during the production will be offset when they are used in the market. For example, the Leaf-like car would offset the emissions in 4900 miles of driving while Model S would take 19000 miles. On average, it is about 50 percent reduction in emissions compared to the gasoline powered vehicles throughout their lifetimes.
Unfortunately, there are still challenges for electric vehicles to be used on the snow covered areas. However, if you are living in the city area, you might want to consider on driving electric powered vehicles.