4 ms·

tonnes of carbon per hectare is not relevant. What you need is tonnes of carbon per hectare per year. We don't have enough space to let these plants be there,

by i5heu 4y ago

tonnes of carbon per hectare is not relevant. What you need is tonnes of carbon per hectare per year. We don't have enough space to let these plants be there, we need to convert them into coal and throw it back into the mines.

samatman 4y ago
The efficient thing to do is render them into charcoal, yes. Biochar is a great soil amendment, and doesn't oxidize over decades or even centuries, depending. Putting it back in the mines is an option, if we ever need to stop rebuilding topsoil, which is itself getting urgent.
- dec0dedab0de 4y ago
  and it could fuel a biomass generator while you make the charcoal
- quixoticelixer- 4y ago
  Biochar is also intensive and only converts a relatively small amount of that carbon into stable charcoal.
  - westurner 4y ago
    Hemp is compostable, though because it's so tough, shredding and waiting for it to compost trades (vertical) space & time for far less energy use than biocharification unless it's waste heat from a different process. Bioenergy with carbon capture and storage (BECCS) > Biomass feedstocks doesn't have a pivot table of conversion efficiencies?: https://en.wikipedia.org/wiki/Bioenergy_with_carbon_capture_and_storage#Biomass_feedstocks https://en.wikipedia.org/wiki/Bioenergy_with_carbon_capture_... : > Biomass sources used in BECCS include agricultural residues & waste, forestry residue & waste, industrial & municipal wastes, and energy crops specifically grown for use as fuel. Current BECCS projects capture CO2 from ethanol bio-refinery plants and municipal solid waste (MSW) recycling center. > A variety of challenges must be faced to ensure that biomass-based carbon capture is feasible and carbon neutral. Biomass stocks require availability of water and fertilizer inputs, which themselves exist at a nexus of environmental challenges in terms of resource disruption, conflict, and fertilizer runoff. If you keep taking hemp off a field without leaving some down, you'll probably need fertilizer (see: KNF, JADAM,) and/or soil amendments to be able to rotate something else through; though it's true that hemp grows without fertilizer. > A second major challenge is logistical: bulky biomass products require transportation to geographical features that enable sequestration. [27] Or more local facilities
    - quixoticelixer- 4y ago
      Composting oxidizes a lot of the carbon. And since you have to replant, harvest and fertilise everyyear it is a lot more intensive than forestry where you do that ever 30 (15-100) years
deleted 4y ago
[deleted]
deleted 4y ago
[deleted]
tlb 4y ago
The figures given are per-year. The article is just sloppy with units.
teaearlgraycold 4y ago
Ever wonder why ancient ruins are buried under feet of dirt? Plants will grow the ground towards the sky given enough time. We could perform a high carbon sequestration crop rotation to pile up dirt in place rapidly.
- quixoticelixer- 4y ago
  Dirt is not just made from organic matter.

by i5heu 4y ago

samatman 4y ago

The efficient thing to do is render them into charcoal, yes. Biochar is a great soil amendment, and doesn't oxidize over decades or even centuries, depending. Putting it back in the mines is an option, if we ever need to stop rebuilding topsoil, which is itself getting urgent.

dec0dedab0de 4y ago
and it could fuel a biomass generator while you make the charcoal
quixoticelixer- 4y ago
Biochar is also intensive and only converts a relatively small amount of that carbon into stable charcoal.
- westurner 4y ago
  Hemp is compostable, though because it's so tough, shredding and waiting for it to compost trades (vertical) space & time for far less energy use than biocharification unless it's waste heat from a different process. Bioenergy with carbon capture and storage (BECCS) > Biomass feedstocks doesn't have a pivot table of conversion efficiencies?: https://en.wikipedia.org/wiki/Bioenergy_with_carbon_capture_and_storage#Biomass_feedstocks https://en.wikipedia.org/wiki/Bioenergy_with_carbon_capture_... : > Biomass sources used in BECCS include agricultural residues & waste, forestry residue & waste, industrial & municipal wastes, and energy crops specifically grown for use as fuel. Current BECCS projects capture CO2 from ethanol bio-refinery plants and municipal solid waste (MSW) recycling center. > A variety of challenges must be faced to ensure that biomass-based carbon capture is feasible and carbon neutral. Biomass stocks require availability of water and fertilizer inputs, which themselves exist at a nexus of environmental challenges in terms of resource disruption, conflict, and fertilizer runoff. If you keep taking hemp off a field without leaving some down, you'll probably need fertilizer (see: KNF, JADAM,) and/or soil amendments to be able to rotate something else through; though it's true that hemp grows without fertilizer. > A second major challenge is logistical: bulky biomass products require transportation to geographical features that enable sequestration. [27] Or more local facilities
  - quixoticelixer- 4y ago
    Composting oxidizes a lot of the carbon. And since you have to replant, harvest and fertilise everyyear it is a lot more intensive than forestry where you do that ever 30 (15-100) years

deleted 4y ago

[deleted]

deleted 4y ago

[deleted]

tlb 4y ago

The figures given are per-year. The article is just sloppy with units.

teaearlgraycold 4y ago

Ever wonder why ancient ruins are buried under feet of dirt? Plants will grow the ground towards the sky given enough time. We could perform a high carbon sequestration crop rotation to pile up dirt in place rapidly.

quixoticelixer- 4y ago
Dirt is not just made from organic matter.