My wife was born in Pittsburgh in 1942, and lived through the clean-up era. She mentions how a white shirt could be ruined by simply walking around downtown, and how laundry drying on a clothesline could be covered in soot before it had a chance to dry.

A lot of Pittsburgh public and commercial buildings were made from a gray sandstone quarried in the area. While I lived there, some of these old landmarks were still being steam cleaned. I remember being amazed at what beautiful stone was revealed after a century of grime was finally removed.

This is what we have to look forward to from Trump and Clean Coal.