The automobile has come a long way since the day of the first automobile in 1886. It has undergone many improvements in its power, comfort, safety and appearance. From a certain moment on, people also began to worry about its impact on the environment. All types of vehicles emit greenhouse gases into the air in different quantities. Numerous regulations have been introduced that establish the allowable amount of these gases that a vehicle can produce and, therefore, force car manufacturers to make their vehicles more environmentally friendly. In addition to reducing the amount of greenhouse gases, the United States has sought to reduce its dependence on foreign oil. In the past, the most common way to address both of these problems was to make cars more fuel efficient. However, lately, electric vehicles or electric vehicles have received the most attention. While electric vehicles have improved and become more available to the consumer, we should not rely solely on them and should research, improve and fund other technologies, such as internal combustion engines or hydrogen-powered vehicles. There are many aspects that limit the use of electric vehicles and their suitability as the only solution to the proposed problems. One of the biggest obstacles is the batteries used in cars powered by electricity. They are heavy and even though “electric motors are about four times more efficient than internal combustion engines”, “gasoline still has 20 times the energy density of batteries” (Bryce). Furthermore, the range (about 100 miles) that batteries can provide a vehicle cannot be compared to the approximately 400 miles of range that an internal combustion engine (ICE) vehicle can offer. Furthermore, it takes a few hours to recharge a battery, but less than five minutes... in the middle of a sheet of paper. 2013.Burns, Lawrence D., McCormick, J. Byron and Borroni-Bird, Christopher E. “Vehicle of Change”. Scientific American. October 2002: 64-73. Web. November 19, 2013. Fuhrmans, Vanessa “Hydrogen Fuel Cells Are Down, But Maybe Not Exhausted.” November 19, 2013.Knight, Ben "Better mileage now." Scientific American. February 2010: 50-55. Web. November 19, 2013. Mufson, Steven. "The car of the future - but at what cost?; Hybrid vehicles are popular, but making them profitable is a challenge." The Washington Post. November 25, 2008. ProQuest. Web. November 19, 2013. Ogden, Joan. “Great Hopes for Hydrogen.” Scientific American. September 2006: 94-101. Web. November 19, 2013. Paine, Chris. "5 myths about electric cars".. 2013.