Is our industrialized pollution changing the weather. When the air pollution in Bejing surpasses 700 micrograms per cubic meter and the safe level is 25 micrograms per cubic meter does it affect rain, snow, trees and other plant life. Is the water shed altered. Does the median temperature show sustained alterations.
Locally in the 4 country region of southern California there are sustained and visible alterations to our environment from industrial pollutants.