Cnn Talk With Max Foster

A shocking new study finds that air pollution could actually be making us dumber. Researchers studied thousands of people in China, and found that long-term exposure to heavily polluted air led to lower verbal and math test scores. While the headline is troubling, the question of how to tackle air pollution is much more complex. What can we do to improve the air we all breathe? And what's the air like where you live? Max Foster anchors a conversation with Nina Shick, Kate Andrews and Freddy Gray. via Knit