So some nice R&D peeps have decided that they will do something nice for Earth - by using other means to provide cool air. And this is with magnets!
In this system, HCFCs will not be required as alloys will be used as the 'refrigerant' and water will be used for heat transfer. Electricity will still be required but it will be much more efficient than the compressor we are using today.
The not so good news is, this will take years to develop for residential use...