The L1 Lagrange point is not perfectly stable. Anything we put there would drift after about a decade. So it requires constant upkeep but also means nothing you do there can be catastrophic.
Both technologies are not “one-shot” but rather are things which are deployed along a spectrum measured in “gigatons of CO2 extracted” or “tons of diffractive material deployed”.
You don’t put one big mirror in place as a binary thing. You deploy thousands to millions of tons of “mirrors” overall, ~100 tons at a time. Imagine a payload of carbon fiber snowflakes which get dropped off, coated in such a way that they self orient broad-side toward the sun.
I wonder what the effective carbon offset of 100 tons of diffractive material at L1 buys you. Given that you could draw a direct cost/benefit comparison.
Both technologies are not “one-shot” but rather are things which are deployed along a spectrum measured in “gigatons of CO2 extracted” or “tons of diffractive material deployed”.
You don’t put one big mirror in place as a binary thing. You deploy thousands to millions of tons of “mirrors” overall, ~100 tons at a time. Imagine a payload of carbon fiber snowflakes which get dropped off, coated in such a way that they self orient broad-side toward the sun.
I wonder what the effective carbon offset of 100 tons of diffractive material at L1 buys you. Given that you could draw a direct cost/benefit comparison.