Maybe Americans could start changing their way of life rather than waiting for « political will » or a never coming technological revolution. UE has started reducing CO2 emissions will keeping a very reasonable and increasing level of life.
USA is certainly a problem, but the elephants in the room are China and India.
Current emissions have the US at 2x India and current emissions are obviously irrelevant since it’s total cumulative emissions that matter, where the US runs away with it.
I assume you mean EU. However, while EU countries have made a lot of promises and plans, they're not actually keeping them either and people are complaining about impact on their daily lives. At least the US is transparent in not wanting to change (their President is).