National Public Radio: Air pollution isn't just bad for your health. It can have dramatic effects on weather and climate. In fact, a team of scientists believes that air pollution from industries and traffic could have caused the extreme floods that devastated southwest China in 2013.
In July of that year, China's Sichuan province was racked with floods from the worst storms it had seen in 50 years. The greatest damage occurred in a mountainous region northwest of the Sichuan Basin, where nearly 30 inches of rain fell...