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So much managed tech for something nature already solved for us passively. I think if we just changed where and how some of our basic input and outputs go we co

by foxhop 9y ago

So much managed tech for something nature already solved for us passively. I think if we just changed where and how some of our basic input and outputs go we could solve this without any tech. https://halfhillfarm.com/2017/04/21/how-hugelkultur-can-help-heal-the-planet/ https://halfhillfarm.com/2017/04/21/how-hugelkultur-can-help...

DennisP 9y ago
Your article says that could absorb a third of emissions, which is great. But it'd be even better if we did that and did everything possible to reduce our emissions.
- lozenge 9y ago
  Not even a third of emissions - 30% of the increase in emissions. And, I don't see the calculation, but it surely can't be done just from the carbon in people's backyard gardens.
  - foxhop 9y ago
    I could if more people did it instead of loading branches and logs onto trucks and going into the waste stream they can be used on the same property, sunk into the ground and left for 20-30 years. It requires changing how people deal with outputs.
nanomonkey 9y ago
Decomposing plant matter creates C02 and methane, so Hugelkultur only suquesters carbon for short periods. Biochar, a.k.a. terrapreta which is buried wood charcoal, on the other hand is thought to be inactive in the soil for closer to 10k years. One can combine energy production from wood gasification, which produces char-ash and biochar to produce a carbon negative electricity source. Taking this a step further one can use the Fischer–Tropsch process on the resultant syngas to produce liquid fuels.
- foxhop 9y ago
  It sequesters it for 10-30 years and then the plants and trees that are grown on or near it further sequesters CO2 and carbon. I think of composition as a "slow burn" (merging back with air). Also creating bio-char is a pain in the ass and not passive at all.
  - BenjiWiebe 9y ago
    One benefit of biochar is that it anecdotally increases soil fertility, so maybe you could produce more bio diesel while you are at it.
notabee 9y ago
The IPCC scenarios, which are already grim, also include hypothetical forms of carbon capture that do not yet exist, in addition to drastic emission reduction, to prevent the Earth from becoming a disaster in the next 50/100 years. This report has a good overview of the difficulties with current carbon capture plans. https://easac.eu/fileadmin/PDF_s/reports_statements/Negative_Carbon/EASAC_Report_on_Negative_Emission_Technologies.pdf https://easac.eu/fileadmin/PDF_s/reports_statements/Negative...

by foxhop 9y ago

DennisP 9y ago

Your article says that could absorb a third of emissions, which is great. But it'd be even better if we did that and did everything possible to reduce our emissions.

lozenge 9y ago
Not even a third of emissions - 30% of the increase in emissions. And, I don't see the calculation, but it surely can't be done just from the carbon in people's backyard gardens.
- foxhop 9y ago
  I could if more people did it instead of loading branches and logs onto trucks and going into the waste stream they can be used on the same property, sunk into the ground and left for 20-30 years. It requires changing how people deal with outputs.

nanomonkey 9y ago

Decomposing plant matter creates C02 and methane, so Hugelkultur only suquesters carbon for short periods. Biochar, a.k.a. terrapreta which is buried wood charcoal, on the other hand is thought to be inactive in the soil for closer to 10k years. One can combine energy production from wood gasification, which produces char-ash and biochar to produce a carbon negative electricity source. Taking this a step further one can use the Fischer–Tropsch process on the resultant syngas to produce liquid fuels.

foxhop 9y ago
It sequesters it for 10-30 years and then the plants and trees that are grown on or near it further sequesters CO2 and carbon. I think of composition as a "slow burn" (merging back with air). Also creating bio-char is a pain in the ass and not passive at all.
- BenjiWiebe 9y ago
  One benefit of biochar is that it anecdotally increases soil fertility, so maybe you could produce more bio diesel while you are at it.

notabee 9y ago

The IPCC scenarios, which are already grim, also include hypothetical forms of carbon capture that do not yet exist, in addition to drastic emission reduction, to prevent the Earth from becoming a disaster in the next 50/100 years. This report has a good overview of the difficulties with current carbon capture plans. https://easac.eu/fileadmin/PDF_s/reports_statements/Negative_Carbon/EASAC_Report_on_Negative_Emission_Technologies.pdf https://easac.eu/fileadmin/PDF_s/reports_statements/Negative...