Keywords
air pollution, architecture, bleak, blue sky, building, california, climate, copy space, dogpatch, environment, environmental, factory, global warming, horizontal, industrial, industry, nobody, north america, outdoors, outside, pollution, san francisco, selective focus, smoke, smokestack, square, steam, tilt shift, united states, usa, vacant lot, vertical, warehouse, 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, blm021706