Reuters: Los Angeles may boast some of the best weather among U.S. cities while scoring high in celebrity sightings, but the Southern California metropolis remains unable to shake off its more notorious No. 1 rankings for worst smog and heaviest traffic.
Los Angeles, the nation's second-largest city, again topped the charts for ozone pollution, and finished fourth for particulate pollution such as dust and soot, in the American Lung Association's annual national air quality report card, released on Wednesday....