this post was submitted on 15 Jul 2025
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Carbon Capture and Storage/Sequestration (CCS) is a topic I changed my mind about, not that long ago, including its subsets like Carbon Dioxide Removal (CDR), Direct Air Capture (DAC), etc. Up to last year or something, I was thinking that it's important for these kind of tech to be researched.
Now I see things differently:
To my understanding, the only CCS tech that makes sense is the one that catches emissions at the source, the factory chimneys.
The others that claim to suck up GHG and store them "out of sight out of mind" are highly problematic for so many reasons. They are distractions from the real issue which is phasing out fossil fuel.
A few relevant links:
Fact or fantasy? Can carbon dioxide removal save the climate?
Climeworks’ capture fails to cover its own emissions
More articles in the relevant community: cdr@slrpnk.net
Direct Air Capture also requires an absurd amount of energy per ton of CO2 captured, making it practically imposible to scale to meaningful levels without creating more emissions than it removes.