Earlier this month, New York City and other cities along the east coast experienced some of the worst air pollution in the world. The cause? Wildfires in California and Oregon so large they produced smoke that drifted thousands of miles. If smoke that dense can travel from one end of the U.S. to the other, imagine what it could do to your lungs.
Click here for original story, West coast fires produce east coast effects
Source: Phys.org