The only way that a comfortable environment can be maintained is through active HVAC systems- requiring energy expenditure. This is not a short term problem. This does not need to be your problem in your own home. Plan for energy efficiency in your construction. Passive systems are the key- design, insulation and construction method are critical.
SIPs are part of the answer.
Architectural trends are quick to change. For example, on a summer afternoon with a 90 degree F outside temperature and cooler inside temperature, the conduction heat flow moves toward the inside. Consistent volume compared to insulation voids, compression and aging. More consistent interior temperatures. Thermal mass is an under-valued factor in energy efficiency.