the missed deadline adds to concerns that climate action has fallen down government agendas

I don’t think there’s any doubt about that. It’s just not a priority in most countries.

I’ve always hated this comparison because the two problems are just not the same, at all. CFCs were nowhere near as ubiquitous as fossil hydrocarbons, and CFCs had an essentially drop-in replacement, which fossil fuels do not. There’s no non-hydrocarbon fuel that we can just replace for coal, natural gas, gasoline, diesel fuel, jet fuel, etc. None that I’m aware of, anyway.