Approximately 80 percent of our air pollution stems from hydrocarbons released by vegetation. So let's not go overboard in setting and enforcing tough emission standards for man-made sources.
Ronald Reagan, Sierra (10 September 1980)
Approximately 80 percent of our air pollution stems from hydrocarbons released by vegetation. So let's not go overboard in setting and enforcing tough emission standards for man-made sources.
Ronald Reagan, Sierra (10 September 1980)