With a newly developed LCD panelcooling duct, the HC5500 is designed to be one of the quietest projectors in the world at 19 dBa, so you can focus on the movie instead of a distracting hum of the fan.
Yet global warming observed less than two decades after many scientists had predicted a global cooling crisis prompted the United Nations to organize an Intergovernmental Panel on Climate Change (IPCC), and to convene a continuing series of international conferences purportedly aimed at preventing an impending catastrophe.
In fact, even the UN's Intergovernmental Panel on Climate Change acknowledges that pollutant particles reflect sunlight back into space, which has a cooling effect.