hydrofluorolefins,

which seems to be better, such as progress. Anyway, it all added up to the largest producer of CFCs also being the nation leading the way to stop using them.

Cities and towns began enacting bans on CFCs. NASA used its tech to confirm and publish visualizations of the problem.

You know, you had these incredible satellite images of the hole in the ozone layer.

A giant dark blue wound across the bottom of the world splashed in the pages of newspapers and on TV. There were scientists still debating whether CFCs were the problem or whether the hole was natural. That's the nature of research. But no movement of denial gained a meaningful foothold. And so, action spread.