Confused about global warming? Is it real? Is it just a lot of "hot air". Past threads on this board have shown we hold opposite entrenched opinions. Well, this may end your confusion. It seems that global warming has often been counter-balanced by global dimming. The first warms the atmosphere while the second cools it because denser clouds, containing much more water vapor captured by billions of pollution particles, reflect solar heat back into space. The combined effect is something of a balance between the two effects. Here`s the problem. Reducing the pollution we produce, would greatly reduce global dimming. As global dimming recedes the extra solar heat will combine with the effects of greenhouse gases already warming the planet and cause a rise in temperatures well beyond current worse case scenarios. The catch 22 we have created is that without global dimming through air pollution, global warming will accelerate far beyond what we have already noticed if we do not reduce both in in balance with each other. Doesn`t that sound like fun??? .
Well, I am sure the extreme doubters will continue in their ways no matter what is proven.
NOVA: Dimming Sun
NOVA presents NOVA: Dimming Sun, airing April 18, 2006 on PBS. In a stunning investigation, Nova reports on the discovery that the sunlight reaching Earth has been growing dimmer a big surprise given all the international concern over global warming. At first glance, less sunlight might hardly seem to matter when our planet is stewing in greenhouse gases. But the discovery of global dimming has led scientists to realize that they`ve miscalculated their models of the climate and how fast it`s changing. And if their models are wrong, it means the worst-case warming scenario could be a lot worse than anyone has predicted. To find out what global dimming means for the fate of the planet, Dimming Sun reveals the findings of the world`s top climate detectives, including an American scientist who found a grim but crucial opportunity on Sept. 11, 2001, when the entire US airline fleet was grounded. Nova unravels this baffling climate conundrum and the implications for Earth`s future.
Global Dimming Research