There's been a lot of talk about haze on the summit recently. And with good reason, its been hazy up there. Although, I'd put up a pretty good argument that the photo posted on this morning's web comment is not entirely haze.
I've never seen haze with such distinct edges. But then again, I've never lived at the top of the boundary layer. Well, I did, but it was winter.
While nobody is going to argue that the air quality is excellent, its not nearly as bad as the haze makes it look. I'd bet that 100 years ago it was much worse, at least in terms of visible pollutants. Ever see photos of London in the 1800's?
The average person looks at haze and thinks its pure pollutants. In reality its mostly water and mostly natural. 200 years ago, before the industrial revolution, they had haze. The east coast of the United States has a perfect climate/environment to form haze.
Don't get me wrong. Man made pollutants create haze, but its just one ingredient, haze also forms without our help. The biggest factor is the jet stream. Dry air from Canada versus moist air from the tropics.