the.com/refrigerant

A chemical that gets paid to feel other people's heat so you don't have to.

means A fluid used in refrigeration and air-conditioning systems that absorbs heat as it evaporates and releases it as it condenses, cycling between gas and liquid to move heat from one place to another.

from From Latin refrigerare, 'to make cool again' — re- ('again') plus frigerare, from frigus ('cold,' the same root giving us frigid). The word simply names what the substance does: it re-cools, over and over, cycle after cycle.

the trick
evaporates and condenses to move heat, not create cold
freon era
CFCs ate the ozone layer, got banned in 1987
current villain
HFCs fixed ozone, now accused of warming climate
next act
industry shifting to propane and CO2, oddly old school
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