Terracotta could create energy-free air conditioning
FedEx / UPS trucks could have air conditioning or cooling options
Windows could tint automatically
Homes, hospitals, and buildings could be well ventilated and filtrated
Refrigerant emissions could be environmentally disposed and alternative refrigerants could be used
A carbon-neutral “synthetic oil well” on every rooftop could provide air-conditioning
Office buildings could have open windows
Air conditioning could be set to a more comfortable level
Coolers could provide air conditioning
Heating and cooling vents could be controlled by your smartphone
Geothermal heat pumps could provide heating and cooling for homes and buildings
Windcatchers could create natural air conditioning