A price increase of 10 to 15 cents per gallon ... and worse air quality, particularly in urban areas already struggling with pollution. On the other hand, using summer gasoline year-round isn ...

Sean Duffy took aim at the main way the federal government regulates miles per gallon for cars and pickup trucks — also a principal way that it regulates air pollution and addresses climate change.

Explore the truth about summer gasoline: why its blends raise prices yet reduce pollution. Uncover trade-offs in fuel and air ...

The proposed sulfur standards will cost refineries less than a penny per gallon of gasoline on average once ... 1 in 3 Americans live in areas where air pollution levels exceed at least one ...