[freebeard]

I don't think CO2 is the best feedstock.

I went looking to see what's up with Cool Planet. I find that:

• They closed their pilot plant in Alexandria, LA
• They've gone to market with a soil amendment called Cool Terra Organic
• Cool Planet at the head of this list.: www.openpr.com/news/2110927/biochar-market-to-2026-seeking-excellent-growth-cool-planet
• www.desmogblog.com/cool-planet-biochar-shoddy-science questions some claims

I guess I can't buy the high octane gasoline that was supposed to fall out of their top seekrit process.
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The throw-everything-at-the-wall approach would involve carbon-free steel, carbon negative concrete and massive biochar biochar to reverse desertification.