Why do we need air conditioning?
Humans use more energy when it's too hot or cold. The body expends this effort to maintain a stable internal temperature and without air conditioning, people can feel lethargic because they're utilizing all their savings for heat/cooling costs alone!
Humans need a balance of cool, warm and hot air to stay comfortable. Without AC in the summer or winter months we would have an excessive amount heat that could make us feel lethargic with all this wasted energy consumption!
