Without air conditioning in hot months the modern-day buildings...

Without air conditioning in hot months the modern-day buildings are uninhabitable. Gone are the days where natural heating/cooling comfort features in construction was the norm. Now, all buildings are designed with the key design incorporating air conditioning throughout, it is as essential as the concrete foundation for habitation. Think apartments, offices, factories along with the numerous industrial process' requiring cooling, which only increases in hot weather. It is true though that the modern split system air conditioners use more electricity to heat than to cool.