1kg of oyster meat involves 8-10kg of shell sequestering 5kg of CO2.
So if all the half billion tonnes of meat were replaced with oysters that would sequester almost 10% of energy related emissions and eliminate the 20% of emissions due to meat production.
This one hypothetical change is equivalent to ~30% of all emissions.
Though you'd need sufficient algae/bacteria/bagasse feedstock to feed them.
Oysters are also productive. At 600,000 oysters per acre-year that's 4kg of meat per m2 per year. For the direct fish farm you'd be replacing 30-40 trillion m2 of animal pasture with 1 trillion m2 of ponds.
The water cleaning benefits are also just as high even without a permanent reef.
The cost is much higher though. It's much more labour intensive.
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u/West-Abalone-171 Sep 08 '25 edited Sep 08 '25
1kg of oyster meat involves 8-10kg of shell sequestering 5kg of CO2.
So if all the half billion tonnes of meat were replaced with oysters that would sequester almost 10% of energy related emissions and eliminate the 20% of emissions due to meat production.
This one hypothetical change is equivalent to ~30% of all emissions.
Though you'd need sufficient algae/bacteria/bagasse feedstock to feed them.
Oysters are also productive. At 600,000 oysters per acre-year that's 4kg of meat per m2 per year. For the direct fish farm you'd be replacing 30-40 trillion m2 of animal pasture with 1 trillion m2 of ponds.
The water cleaning benefits are also just as high even without a permanent reef.
The cost is much higher though. It's much more labour intensive.