I think plants convert 120 GtC from the atmosphere into biomass every year (ref https://www.worldbioenergy.org/uploads/Factsheet_Biomass%20p...) - obviously this is very roughly balanced by how much CO2 is naturally returned to the atmosphere. The additional anthropogenic CO2 emissions are 37 GtC.
So there is theoretically enough biomass for us to sequester - if we could do all that work without dramatically increasing our CO2 emissions...
This paper made an attempt at a comparison of fossil fuel use versus agricultural biomass production: https://www.researchgate.net/figure/Global-annual-production...
I think plants convert 120 GtC from the atmosphere into biomass every year (ref https://www.worldbioenergy.org/uploads/Factsheet_Biomass%20p...) - obviously this is very roughly balanced by how much CO2 is naturally returned to the atmosphere. The additional anthropogenic CO2 emissions are 37 GtC.
So there is theoretically enough biomass for us to sequester - if we could do all that work without dramatically increasing our CO2 emissions...