More on Global Dimming

dtolman writes "According to the New York Times (registration required) if the world seemed brighter to our grandparents 50 years ago, they were right. While the sun's output hasn't dropped, the amount of sunshine reaching the Earth's surface has dropped an average of 10% since the 1950's. In Hong Kong, the sunlight reaching the surface has decreased even more - 37%! Scientists are theorizing that this is mainly due to air pollution - so this trend might reverse if air pollution clears up." We had a another story on global dimming last year.