Source https://archive.org/details/pollution_below

Industries like steel mills emit particles that act as ice-forming nuclei (a particle which acts as the nucleus for the formation of an ice crystal) into the atmosphere. These may encourage snowstorms. The southern Great Lakes region is one of the world’s leading centers for manufacturing iron and steel. http://www.miseagrant.umich.edu/lessons/lessons/by-broad-concept/earth-science/lake-effect-snow

Skylab was the United States’ first and only space station, orbiting Earth from 1973 to 1979 https://en.wikipedia.org/wiki/Skylab