[davesque]

Don't give up hope. We licked CFCs and leaded gasoline. There are probably plenty of other times in history when we mobilized to solve a problem at scale. These are discouraging times for sure. But ultimately there's just no point in being hopeless.

[sizzle]

What’s the reference of licking cfcs referring to?

[jtms]

CFC == Chlorofluorocarbons, "lick" is slang for "defeating". It means we passed law prohibiting the use of CFCs.

[kenny11]

Banning ozone-depleting chlorofluorocarbons.

https://en.wikipedia.org/wiki/Montreal_Protocol