Edit: Plant a tree or throw some local seedbombs!

This comes up pretty often in r/ClimateOffensive and similar subreddits. I have had colleagues work on similar projects. It's great that people can do work like this! There will always be a net loss of energy and increase in carbon in this system however, as subtly noted in the article.

Burn CxHxOx creating CO2 -> use energy to capture the CO2 -> put the CO2 somewhere. The only issue is the CO2 captured with the energy produced will always be less than the CO2 created.

This technology is important long term, once fusion is viable commercially, but currently it's more of a distraction and creates CO2 while using crucial grant money and scientific resources.

Source: Graduated from mechanical engineering with a focus on Advanced Thermodaynamics and Energy Systems.