Did Anyone Else Already Know the Globe Is Dimming?

Holy crap. We sat down to watch a few minutes of TV today and turned to PBS. Our mood darkened immediately after watching a little of the NOVA program "Dimming the Sun." Air pollutants caused by human activity is not only warming the planet, but it is also reducing the amount of sunlight that penetrates the atmosphere. The consequences of global dimming are severe, with effects on rain patterns and more. But apparently the planet has been brightening lately. Check out the post at Wikipedia.