[spookybones]

In a better world, if every country agreed not to destroy each other for a decade and applied their defense budgets, it's doable. Global defense budget is approximately 2.2 trillion as of 2022, according to Statista. Granted, that would cause of a lot of unemployment.

[tuatoru]

Whereas sulfate dispersal in the stratosphere would cost about 700 million per year. Over three orders of magnitude less money.

[roywiggins]

Unclear whether a crash decarbonization program would be more or less expensive than that, though.