Mehr Solar bedeutet mehr Solar: Chinas Bestrahlungsanstrengung um 30%, wenn Aerosole sinken.

China has had air pollution issues for many years as it’s begun to industrialized. This is lead toward the citizens humorously naming the various clean air sky days that were dictated by the government after the reason government chose to dictate a blue sky day. What that means is, when important people would visit key cities, they would force factories, cars, and other polluting industries to cease activities enough days in advance, so by the time the key people showed up the place looked pretty. One that I specifically remember is Obama blue. Another was Olympic blue.