text: To begin with, cars release chemicals from the gasoline that can pollute the air. "After days of near-record pollution, Paris enforced a partial driving ban to clear the air of the global city." (Duffer 10). This states that the air has been getting so polluted that some cities have been temporarily banning the use of cars because of this issue. Earth has been getting too polluted and destroyed lately, to the point that some people have been trying to predict an "end is nigh" date due to all of these issues with earth. Scientists have been talking about global warming for years now, and the problems we have been having with the greenhouse effect and the ozone layer. "President Obama's ambitious goals to curb the United States' greenhouse gas emissions, unveiled last week, will get a fortuitous assist from an incipient shift in American behavior: recent studies suggest that Americans are buying fewer cars, driving less and getting fewer licenses as each year goes by." (Elisabeth Rosenthal 29). So it seems that the lower use of cars by Americans has been helping the atmosphere and postponing the date of the complete destruction of the ozone layer. That was why cars have such a big impact on the environment as a whole.