The US government plans to spend a billion dollars researching capture of Co2 from the air.

It is a distant long shot, and not likely to be of real help before it is too late. On the other hand, it is small compared to what real decarbonization will cost. So I think it won't make much difference either way — unless it somehow interferes with serious decarbonization efforts.

But it could do just that. Planet roaster companies will surely get involved in these projects and use them for greenwashing, and to lobby against methods that have a chance of actually reducing fossil fuel consumption.