This seems like a pretty clear cut case for air capture and carbon sequestration. At $22 trillion and $100 per tonne, you could amortize it over 40 years to drop the cost down to $500 billion per year, substantially less than the FY 2024 U.S. Department of Defense budget request. Expensive, but not impossibly or exorbitantly so.

In this light, it could be claimed that global warming is merely the cost of war in externalities. Rather, the peace dividend from world peace would easily pay for the remediation of anthropogenic carbon. Conversely, the funds that might be used to pay for mitigation of global warming will likely continue to be used to fund warfare until the countries of the world commit to disarm and cease hostilities.

The most effective way, then, to raise the funds needed to pay for decarbonization is to advocate for world peace and universal disarmament.

HCP FTW.

What would be the plan to control costs? Fe2O3 nano particles aren’t cheap, as you can see. At $3M per tonne and the need for, say, 10 gigatonnes to start off… That would put the cost of this plan at $30 quadrillion. I’m sure that, at that scale, the price would come down, but that’s a pretty high starting point. Toss in the fact that these nanoparticles would naturally settle out over time and the costs would increase further.

No one said terraforming was going to be cheap, but at that price, there has to be a less expensive option.

Same here. I’ve come to the conclusion that, if I was unwilling to accept anyone that wasn’t of the calibre of Carl Sagan to fill his shoes, I was probably going to wait a long time. I think Degrasse Tyson’s advocacy for black scientists is admirable, as is his willingness to promote religious reconciliation. These weren’t areas of focus for Sagan, but that’s ok. They can be different people, even imperfect people, and maybe that’s good.

Yeah, if that’s what Johnny Cash was talking about, then what was Trent Reznor talking about?

It’s also a cross-platform portable executable, so you can use it out of the box on almost any machine with an internet connection. Once you get the hotkey bindings down, it gets very easy to build simple designs. Unfortunately, it can choke on modest levels of complexity, but I most of my work is relatively simple, so Solvespace is a godsend.