![](http://www.alamy.com/thumbs/6/6CF8BDE7-933A-4322-90B8-745939327253/2ACG2JT.jpg)
Industrial air pollution. Smoke billowing from a steel mill's chimney stack.
Size: 3685px × 4913px
Photo credit: © CORDELIA MOLLOY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: air, atmospheric, billowing, chimney, chimneystack, combustion, environment, environmental, factory, fossil, fuel, fuels, industrial, industry, pollutants, polluting, pollution, rising, science, smoke, stack, technological, technology, urban