"Another example, the war in Ukraine is accelerating the clean energy revolution in Europe, cutting down on air pollution."

Maybe in the long run it helps, but right now, not really:

"European coal-fuelled power generation climbed last year as countries scrambled to replace Russian gas, but the increase was smaller than feared as renewable energy helped to plug the gap, ...Outright coal generation in the EU increased by 7%, or 28 terawatt hours (TWh), in 2022, pushing up power sector CO2 emissions by nearly 4%."

https://www.reuters.com/business/energy/eu-coal-rebound-smal...