Climate change could worsen ozone levels across the U.S., study says

Smog could worsen across the United States in the coming decades as climate change boosts summer temperatures and makes ozone levels more difficult to control, a new study says. Americans can expect the number of days with unhealthy air to jump 70% by mid-century unless emissions of smog-...



via L.A. Times - Science http://ift.tt/1huu9xC