idk, a tree sound cool, but is it efficient ? a windmill could power an electrolyzer that could produce oxygen (from salty sea water) or power a carbon capture device. a windfarm could do both maybe. at least windfarms and solar are expendable and could be installed offshore, and a fertile land should prioritize crop growth instead of growing trees (also not growing trees help save water aquiefers for crop growth or human consumption and avoid the need for desalination stations) or installing renewable
You do realize China leads in both wind and solar by a wide margin globally?
i guess so..but i was talking globally: planting trees doesn't sound efficient (at least in rural areas): it eats up fertile land and fresh water that could otherwise be used to grow crops or feed fresh water to humans. wind farms and solar should also be installed offshore to avoid wasting fertile land. also europe could use interconnectors to help transfer excessive energy produced by renewable between its countries to mitigate production intermitancy. extra urban estate should be dedicated for social housing or, ofc planting trees (if water reserves allow it)(china could afford planting extra trees, but europe can't afford that luxury for now and should implement social housing instead)(poorer countries are lightyears behind both europe and china, and china ofc leads the pack)
Deforestation in Europe is already happening at an alarming rate, more deforestation is definitely not the solution for Europe https://www.theguardian.com/environment/2020/jul/01/europe-losing-forest-to-harvesting-at-alarming-rate-data-suggests