Nonsmokers who live in locations with high levels of air pollution are approximately 20% more likely to die as a result of lung cancer.

A federal study found Americans are living an average of five months longer thanks to cleaner air over the past two decades, according to a recent Associated Press report.

PROVO -- Brigham Young University economics professor C. Arden Pope will speak Tuesday at 11:05 a.m. in the Marriott Center.