Religion and science have often been at odds over many issues. One famous battle was the 1925 Scopes Monkey Trial that pitted the theory of evolution against fundamentalist beliefs. Much earlier, the Italian astronomer and physicist Galileo Galilei (1564-1642) faced the wrath of the Roman Catholic Church because he was able to prove that the Earth revolved around the Sun. At least he fared better than the 16th-century Italian philosopher (and former Catholic priest) Giordano Bruno, who was burned at the stake for insisting that the universe is infinite and that other solar systems exist. Today, some people who no longer practice traditional religions have found a replacement “deity” in climate change to find meaning in their lives. Ironically, they use “science” and computer modeling to show that doomsday is approaching unless we change our ways. Carbon dioxide and other greenhouse gases are the “tools of the devil”, according to adherents of global warming and some may point to HVAC as the devil itself. The scientific jury is still under deliberation over man’s role in climate change. It is true that HVAC consumes energy and expels heat into the atmosphere but the benefits to society far outweigh the drawbacks. Consider hospitals, clean rooms, laboratories that need a controlled climate. Think about a person with respiratory problems who need a room at a proper temperature and humidity level just to stay healthy. What would happen to the environmental activist whose smartphones and laptops fail if they get too hot or damp? Their goal of no HVAC would mean that they could not buy a replacement because the manufacturers of silicon chips could not operate without air-conditioned facilities. Imagine a Millennial with no smartphone.