Geoengineering cooling concepts to counter heating due to emissions is one thing, but even when we commercialize fusion and it becomes extremely cheap to purcha

Geoengineering cooling concepts to counter heating due to emissions is one thing, but even when we commercialize fusion and it becomes extremely cheap to purchase huge amounts of emission-less electricity for high heat and pressure of industrial activity (exponential ramping up of metal&mineral smelting/welding/stamping/cutting/shipping) - all of this activity will be a significant source of heat. The less toxic atmosphere of a terrestrial-based Type 1 civilization would still require planetary cooling mechanisms.