Keywords
air, canada, co2 emissions, color photography, dirty, energy, engineering and technology, environmentalism, fossil fuels, global warming, greenhouse effect, industry, north america, oil, oil refineries, oil refinery, petroleum processing, pollution, refineries, refinery, sarnia, science, technology, united states, united states of america, us, usa, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, u11347597