The full book is not yet available anywhere. It's self-published (and I mean that literally; I'm doing the printing and binding myself, to discourage making it

The full book is not yet available anywhere. It's self-published (and I mean that literally; I'm doing the printing and binding myself, to discourage making it another $.99 Kindle throwaway or having a crappy low-res PDF version of it floating on torrents or sci-hub). List price on it will be in the hundreds of dollars. I'm not trying to sell as many copies as cheaply as possible, which might be hard for some people to understand. Message me your info and I'll give you a discount on price. Elemental carbon is probably the wrong goal: keeping a limited pool of CO2 and thermally converting it to CO, then water-shifting the CO into CO2 + H2 is far more practical. If you want to bury the carbon, it's more practical to bury it as a hydrocarbon, which is easily accomplished with the CO + H2 used through Fischer-Tropsch. If you want to convert the carbon back into food, there's probably some clever process to convert F-T product oil into sugars and carbohydrates.