To get a clean view of a dirty sunset in a big city, one must go up, the higher the better. So we did, to the loftiest publicly accessible place in Bangkok: the “King Power Mahanakhon” skyscraper’s rooftop. From there, the distant cirrus became more visible with time as sunset’s glare lessened, and less light filtered through the densely hazy boundary layer (represented by the brown band extending up from the surface). Even under polluted circumstances, there’s a definite beauty to such a scene,