Air pollution can cross state lines, and with deadly consequences, study says

Around 60% of deaths related to air pollution in New York state come from emissions that travel from other states, according to a new study.

(CNN)Air pollution is known to have negative -- even deadly -- effects on our health, and studies have shown that breathing pollution can kill, even at levels below air quality guidelines.

Now, a new study shows that air pollution produced in one state often blows across state lines, and can cont