The energy required to take carbon out of the atmosphere is at best, double what it took to put it in the atmosphere in the first place. There’s seriously strong economic reasons that this is a bad idea.
There are hard limits on recapture efficiency. The only way to make it remove more than it creates is to use energy like geothermal. Even then, the production of a carbon capture facility generates enough emissions that it would take years of constantly running, and you’d only ever reach it if you’re using 100% clean energy to power it.
The energy required to take carbon out of the atmosphere is at best, double what it took to put it in the atmosphere in the first place. There’s seriously strong economic reasons that this is a bad idea.
And it’s perfectly normal for technology to advance and become more effective and efficient over time.
There are hard limits on recapture efficiency. The only way to make it remove more than it creates is to use energy like geothermal. Even then, the production of a carbon capture facility generates enough emissions that it would take years of constantly running, and you’d only ever reach it if you’re using 100% clean energy to power it.
Grind up basalt slightly more than we normally do. Spread it out.
It’s exothermic.
Rate limited, but more than enough to undo the damage if we stop digging up 95% of fossil fuels.