Germany: We moved our power creation from 60% coal and atom-driven to 60% wind and solar-driven in the last 6 years. This change is fundamental and can’t be reversed. We stopped our atom plants and have a plan out of coal. Even though our geography isn’t in favor for renewables, our country is dedicated in becoming carbon neutral. This is supported by most of the population and industry. (Yes renewables are cheaper than coal, gas, and atom)
Still open is the transition of heat and cars to electricity. Rather an emotional debate - Germans are car-crazy. The car discussion is similar to the gun debate in the US.
That is tbh a very US centric perspective. The decade Gen X grown up - youth in the 80ties and young adulthood in 90ties - is known for the break up of the Sovjetbloc. If that isn’t a big shake in life, I don’t know what else might have such an impact on lifestyle, thoughts, ownerships and behaviors.
The longtail effects had disruptions to other regions in the world with unrest and uprisings for independence.
And sure there have been conflicts as well. E.g. the North Ireland conflict with bombing in the UK. And there was the first nuclear disaster of Tschernobyl in 1986 causing angst in Europe.
But at all, I‘d say these days were characterized by a positive mood and the feeling that people can change things.