Category: HCFC alternatives

Oh great. Back in the '80s when the ozone hole was fresh news and the Montreal Protocol was unsigned - but a threat to big chemistry companies such as DuPont so dastardly they sent squads of p.r. guys to newspapers so they could hector science writers by insisting the world could not go on without ozone-clobbering CFCs in our AC units - there was one confusion I strove to correct (quite aside from there being good ozone in the stratosphere and bad ozone down here). Global warming was then as now also in the news. And then along had come another global-scale threat, to ozone. People tended to blame CO2 for ozone holes, and CFCs for global warming, or each for both....