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Anaerobic digestion causes the production of (more) methane rather than co2. Methane is a 100x more potent greenhouse gas than co2 over the short term. Over h
by hwillis 10y ago
Anaerobic digestion causes the production of (more) methane rather than co2. Methane is a 100x more potent greenhouse gas than co2 over the short term. Over hundreds of years it breaks down but even a century from now it's 30x worse.
Anaerobic digestion is great as long as leaks are kept below 1%. Doing so is tricky.
- nkurz 10y agoOver hundreds of years it breaks down but even a century from now it's 30x worse. That doesn't sound right. Most sources I've seen[1] say that atmospheric methane has about a 10 year half life. I think the 30x figure you refer to actually represents the sum of methane's annual impact over 100 years. Despite the greater immediate efficacy as a greenhouse gas, the amount of methane remaining after a century should be so small that the impact in the 101st year would be extremely (likely unmeasurably) low. [1] For example, https://en.wikipedia.org/wiki/Atmospheric_methane https://en.wikipedia.org/wiki/Atmospheric_methane