The Fuel Emissions Reduction Act Pollution in the United States is getting worse and worse by the day. Poor air quality is a serious issue and health risk in cities throughout the country. The main source of the pollution problem is our transportation. Cars produce roughly one half of the pollution in our cities, and about a quarter of the greenhouse gases. The internal combustion engine is the single largest source of air pollution in …showed first 75 words of 412 total…

…showed last 75 words of 412 total…