How much energy is needed for this harebrained scheme? Is that energy polluting?
Plant trees instead and ban slash and burn farming.
Energy will be needed to do this, and it goes without saying that the energy should not be fossil fuel based. I suggest that the only energy with the efficiency to do this is nuclear. They won’t like it and will make more movies about those bad industrial people who will profit, but it will do what is necessary.
And what is necessary, although the article does not say, is to use the additional electric power to switch transportation to electric vehicles and rail and also desalinate enough water to restore plant life in our desert regions. This will allow capitalism to deliver what socialism promises. And as a bonus, power may eventually be so cheap that we can suck Carbon out of the atmosphere, although we might also have to make it available to grow plants in the desert because plants do need this trace element.