There's very little to do in Europe. South Korea, Iran, Thailand, Egypt or South Africa e.g. put out significantly more CO2 than say the UK or France (which are towards the top). India and China are higher than the whole EU and are only continuing to pollute more as their standards of living improve. Essentially the only way to stop it is to keep the 3rd world impoverished (in Africa, people often argue that green energy is a Western conspiracy to keep them down). Western economies have already largely stagnated and most of Europe's pollution's fallen to lower per capita than China, let alone South Korea or Russia or... Uzbekistan, Kazakhstan and such.

Pro-nuclear efforts are the best hope we have: generate enough electricity and we can scrape the atmosphere clean