> Both sides of the equation need to be solved.

Sorry, but, at this point ... why? Oil will run out before 2070 (read a bit of peak oil talk, oil running out doesn't mean zero oil pumped up, it means zero used for transport. There will still be reasons to dig up a little bit of oil). The strongest climate agreement was essentially status-quo in 2050, which now seems unlikely to actually happen, for 2 different reasons.

First, the very very bad news: the most recent climate agreement was less ambitious (because Russia, China, India and essentially all of Africa refused, even more than the US did under Trump). The secretary general of the UN got accused of joining oil trade deal meetings at the climate conference in Azerbaijan. At this point, a political solution is just not going to happen, nobody wants to make it happen. The other side of the equation, oil producers, Russia, Saudi Arabia refused to even discuss any kind of limits AT ALL, an even more extreme position than the US. So there's no political options there either.

What the EU decides to do or not do is a rounding error, every European country except Russia (insofar they're European) just can't do anything, and even the US matters less and less.

But the good news: if you look at production quotas and solar replacement, ie. the economics of oil, oil should run out sooner (because the maximum price anyone will pay will drop, but of course same caveat, run out does not mean 0) than the agreement puts in place.

So why do anything at this point? God, so to speak, will interfere. By that I mean digging up oil will become difficult/expensive while solar and batteries becomes cheaper, which will result in a faster drop in oil use than actually respecting the most recent agreement.

So, no, nothing needs to happen.

And now we are in the situation we are already in for 50+ years: You want to help climate change? Go study chemistry. Find new energy conversions that work. Find new battery chemistry that works better. Find a way to carry electrical energy with 10x the density of the best batteries (so even militaries have zero reason to get away from oil, ie. this is the only way to convince China and India to use less oil). THAT will accelerate oil's decline.

Politically? There is no reason here whatsoever for political change in Europe. And while I want Trump gone, so far he's by far the politician pushing the hardest for solar, despite his rhetoric.