Smog in Los Angeles

(Original Caption) Los Angeles, California: Same smoggy problem, ten years later, in December 1956 a photographer recorded smoggy Grand Avenue between 5th and 6th Streets (above); view from the same spot 10/10/67 shows progress in building construction but not much change in smog control. Officials brag that the smog is no thicker than it was ten years ago although the population nearly doubled, which is progress of a sort.