Re: So, what is the solution?
Solar and wind are absolutely *part* of the solution, but saying we've solved the problem by having some small island in Europe piddling money on solar and wind is to completely and utterly misunderstand what the problem actually is. The UK currently produces less CO2 than we did in the 1880's, but is doing so at the cost of delaying infrastructure investment. Meanwhile the rest of the world, particularly China and the developing nations are heading sharply in the other direction as they work to reach the living standards we enjoy.
For all the idiocy from the fossil fuel lobby, the renewable lobby is doing us all a disservice by pretending that the path to true sustainability is simply a question of sticking up more windmills. The current massive inflation spike, driven in no small part by the energy insecurity highlighted by the Ukraine war should make it very clear that we have not "solved" renewable energy. Both Germany and the UK have been hailed as leading the charge to renewables, and both nations saw just how dependent we are on fossil fuels when Russia began it's campaign. Worse still, no-one seems prepared to acknowledge that the *only* reason solar and wind investment has exceeded oil is because the war has (hopefully temporarily) skewed the economics so heavily that renewables look cheap in the short term. That is not actually a thing to celebrate.
Here's the problem: domestic transport and energy usage is the easy part. National infrastructure, construction, industry and commercial transport are the hard parts - and these are the ones that actually dominate the global energy landscape. We don't have good solutions for them (particularly industry, storage and construction), and until we do we will continue to see China building coal-fired power stations, global energy usage rocketing ever skyward, and the geopolitical fallout of energy insecurity causing continued conflict. Being able to drive to Waitrose in your solar powered Tesla is no doubt very reassuring, but very much a first-world privilege built on very shaky foundations.