the.com/refrigerants
the moody chemicals that absorb your kitchen's heat and disappear it out the back.
means a fluid engineered to evaporate and condense at just the right temperatures, carrying heat out of a fridge or room and dumping it elsewhere.
from early iceboxes used ammonia and sulfur dioxide, both toxic and occasionally explosive; in 1928 chemists at General Motors and DuPont cooked up Freon, a stable CFC, to make home cooling safe, then decades later we learned it was quietly shredding the ozone layer.
ozone villaincfcs banned globally by the montreal protocol in 1987
replacement problemhfcs fixed ozone but are potent greenhouse gases
phase change magicthey boil at sub-zero temperatures to steal heat
next generationhydrofluoroolefins break down in days, not centuries