[OldNavyVet]

My working years had me doing considerable work in doing failure analysis. Along the way, I went to night school to learn various technologies, one of which being refrigeration.

Later, some jerk at UC Irvine got a Nobel Prize for claiming that refrigerant R-12, upon release into the air went up to eventually destroy the ozone layer.

The facts about R-12 are ... upon release, it's heavier than air and sinks like a rock. The refrigeration teacher happened to be a shipyard worker, and he revealed to us the critical fact that released R-12 would fill up a ship's hull ... push out the air ... and KILL humans that went into an R-12 contaminated hull.

True story. Pass it along.

[rktman]

0 zone. Isn’t that the area around the white house? :>}

[Sgt_Schultze]

The more likely reason is that DuPont’s patent was about to expire on Freon and they donated enough money to have the open-source refrigerant replaced by their newer, freshly patented alternate.