rashidas wrote: Can a focus fusion reactor be designed to fix carbon dioxide from the atmosphere?

It could provide electricity and process heat for such a reaction but someone would still have to develop a cost-effective method of atmospheric CO2 sequestration in the gigatons-per-year range … and [em]that’s[/em] the sticking point.

Barring such a breakthrough it would be much simpler and much, much cheaper to just use Focus Fusion units to replace fossil-fuel power plants while humans begin working to reverse deforestation and begin planting trees.

And the increase in the availability of easily distributed carbon-free power enabled by FF units will greatly aid humanity in coping with the Century of Storms.