The German goverment of the late 90's and early 00's, along with a very small number of contemporaries such as Denmark can claim a large portion of the credit for the good climate news that we do have.

Today, solar & wind power are the cheapest form of electricity generation, and form the vast majority of new electricity capacity being built. That's likely the primary reason why CO2 emissions have flat-lined and may even start decreasing in 2026. (China's emissions are down 1% in the first 6 months of the year). Worst case scenario is now 6 degrees rather than 8 degrees.

And why are they so cheap? Because Germany and a few others installed a large amount of wind and solar in the 90's and 00's at stupidly ridiculous prices. This volume kickstarted the production learning curve that resulted in the actually reasonable prices we enjoy today.

Germany and others spent billions a couple decades ago, and probably have saved millions of lives and will be responsible for trillions of GDP a few decades in the future.

So yes, voting matters. It matters a lot.