air quality

Because climate-change deniers are no longer able to say, with a straight face, that the climate isn’t changing, they resort to a host of irrelevancies. First, it was that the phenomenon was natural, the climate has always changed.
“Things were bad, it was terrible.”   - Lucas Henneman, lead author and professor at George Mason University.  
Struggling to lose weight? Exposure to air pollution might be partially to blame. That's what recent headlines would have you believe, anyway.