Dimming the Sun - S33.E16 - NOVA
Everyone has heard of global warming, but a lesser-known man-made phenomenon has been nearly as powerful at affecting Earth's climate. A look at global dimming, created by soot and pollution reflecting the sun's rays and surprisingly helping to offset global warming's catastrophic advance.
Dimming the Sun - S33.E16 - NOVA
April 18, 2006
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