You need technology cheaper than fossil fuels. Some of fossil fuels' downsides are upsides for some people (political control), which necessitates the difference in cost by a big enough margin to counter those invisible benefits. A revolution.

There's no urgency, I think, because Earth's population is going to start shrinking. The emissions are going to slow down for that reason.

Countries that won't have some quality, not quantity, approaches to their economies by then are going to fall hard.

I guess that's how EU is going to make the world owned by Europeans again.