The best kinds of road trips are ones you'll never forget, but the imprint left behind from these kinds of journeys will stick with the environment forever. A new study directly links carbon pollution to the amount of ice that's thawing. According to the researchers, driving a gas-powered car about 90 miles –the distance between New York and Philadelphia –melts about a square foot of Arctic sea ice in the critical month of September. Our current carbon emission levels indicatethat...