THE EARTH IS NOW OUTSIDE THE BOX
So we have to think outside it, otherwise our thinking will be on the wrong planet. The normality on which we have predicated our decisions, both public and private, for 10,000 years has gone, so we have to be thinking where we are, not where we used to be.
We have to do whatever it takes, we have to try many things that we would not in the old normality have considered, so as to try to fix at least some of the mess we have made through our insane, murderous addiction to the Black Stuff. Global overheating has clearly passed the point of no return (and even if it hadn't that damned addiction would not be given up soon enough to stop it before it did).
During World War II the British were willing to try any idea, to use all sorts of opeople, such as movie directors and sci-fi writers and horoscope pushers, and to do whatever it took to beat the Nazi foe. For example, they set up a full-blown mock army in southern English fields made of wood and canvas and rubber, and even had a general assigned to it, to help fool the Germans into thinking that the D-Day landings were going to be somewhere other than Normandy. They also sent a uniformed corpse to war in a rubber dinghy, with some private letters in his pocket that appeared to hint at a false landing place. Whatever helped, they did. Everything was on a war footing to win the war.
We have to do the same. Guys with money, and government treasuries, have to be ready and willing to tip it into all sorts of schemes. Except looney ones. This is no time for little green men stuff. But if an idea has a chance of helping to make a hole in the problem, and it needs, say, a hundred thousand dollards, or a million, then that should be provided so that it can be tried. This is no time for standing on that traditional work of fiction, the business plan, and saying that if there isn't one there's no deal. Everything has to be predicated on the new reality, the planet as it is, not as it was; and everything that might help it should be done ASAP (which also means doing nothing that would hinder it--such as anything that would generate more carbon-dioxide).
So get outside the box. If you aren't you aren't on planet earth.