Wiktionary
smokestack industry
n. (context manufacturing English) An industry or any large manufacturing facility that utilizes one or more smokestacks to dispose of unwanted materials into the atmosphere.
Wikipedia
Smokestack industry
A smokestack industry is a basic, usually cyclical, manufacturing industry. The factories stereotypically used in such industries have flue gas stacks, hence the name, and produce a high volume of pollution.
Example industries include:
- Iron and steelworks
- Automotive industry
- Chemical industry