Cars, Smog, and EPA

Over the past fifty years, EPA has overseen incredible reductions in auto pollution.

This is part of an occasional series of posts about the evolution of pollution standards. Today’s subject is pollution control for new vehicles, which have been known to cause smog since the 1960s. The history of these pollution standards is quite distinctive. At the high temperatures in internal combustion engines, some of the nitrogen in …


Why we have the EPA

Air quality in Beijing over the past week has reached horrifically bad levels. The U.S. Embassy’s air quality tracker went from “Hazardous” to “Beyond Index” on Dec. 4. Check out the depressing details via Treehugger and France 24. It looks like the Great Smog of London from 1952. England passed its Clan Air Act 4 …