A couple of hundred years ago, the unfiltered fumes from coal plants and factories were considered signs of human evolution. Maybe it’s the same with this type

A couple of hundred years ago, the unfiltered fumes from coal plants and factories were considered signs of human evolution. Maybe it’s the same with this type of pollution? A perhaps necessary step to something better. The evolution continues. The first time it really struck me was many years ago on a bike trip in eastern Germany. For various reasons I was biking late into the night, and was maybe 20k outside a major city, way out in the country side. I couldn’t see the city itself or any direct light from it, but the sky above it was lit up like a dome of light.