> If things would have worked as you say They work _exactly_ as I say: https://en.wikipedia.org/wiki/Heat_pump_and_refrigeration_cycle https://en.wikipedia.or

> If things would have worked as you say They work _exactly_ as I say: https://en.wikipedia.org/wiki/Heat_pump_and_refrigeration_cycle https://en.wikipedia.org/wiki/Heat_pump_and_refrigeration_cy... https://en.wikipedia.org/wiki/Second_law_of_thermodynamics https://en.wikipedia.org/wiki/Second_law_of_thermodynamics > Just open the windows and blow the cold air out and keep the inverter inside This "just" seems to hint that you don't seem to quite be grasping the concepts and scale at hand: - Assuming perfect efficiency and unlimited free energy, where would you even put the heat from outside? - Since energy is neither free nor unlimited, the energy needs would be enormous+ - Since it is not perfectly efficient and the energy needs are so high, the amount of wasted energy (which is heat) would be colossal, and only make the problem worse + The heat causing global warming comes not from human activity but from the sun, the anthropogenic effect at play is that this energy from the sun is captured by greenhouse effect.