Like, the solution has become very clear and apparent.
Solar panels and batteries on all homes. Wind energy wherever possible with gridscale backup. Electric vehicles for anything with an axle-weight below 10k. Hydrogen (if we must) for everything above 10k, until we have batteries with weight to performance ratios that can support trucking with electric.
Climate change and carbon reductions are only a technical issue if you insist that every one be working all of the time to justify their existence. Appreciating that most of almost everyones work is just 'busy' work in the exercise of justifying our existence, we could easily solve this issue.