By far the most effective an immediate solution to limiting the damage of climate change is to simply to keep fossil fuels in the ground.
People talk about the economic pain of doing this, but that economic pain is nothing compared to the impact of unmitigated climate change.
Even though this would be painful, it is also by far the easiest and fastest to implement solution. It would take fantastically more time and resources to scale up direct air capture (even if it existed in a scalable format today) to come anywhere near addressing this problem.
> Yes it will take some grid and storage upgrades (US) and continue to embrace renewables
This is not exactly true, we would have to experience global economic collapse in order to reduce our fossil fuel use. 80% of energy is not spent on electricity globally and this is non-electricity usage is where most of the fossil fuels are consumed and this drives most of the global economy. There's a good reason there are multiple wars being fought over for oil.