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michael_nielsen 21. stu
A few of my working notes on direct air carbon capture (DAC), and the implications for climate change:
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David Deutsch 21. stu
Odgovor korisniku/ci @michael_nielsen
Excellent. More such ideas, please. It would be dangerous to rely on just one, even an excellent one, let alone the bad one that's current policy.
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michael_nielsen 21. stu
I really like Adam's notes, and need to read them properly. Every time I start I end up with 20 open tabs & never make it past a few paragraphs.
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michael_nielsen 21. stu
"I can't read your writing. It's too interesting!" is perhaps an unusual compliment. But true here.
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Adam Marblestone 21. stu
Thanks! Faced similar tab proliferation issue trying to write it... , yes, I tried to cover ~all known ideas (and you wouldn’t believe what video is linked at the end of the 3rd post). But none as lucidly & coherently encapsulated as on DAC here!
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Adam Marblestone
I love how you use this as a way of bounding pessimism without anchoring too much on the specifics — it’s hard to get people thinking along those lines! FWIW, (thermodynamic entropy of mixing bound) x (reasonable price of energy) does seem to be below $10/tonne for DAC itself:
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michael_nielsen 21. stu
Yeah, people mix up "Is it _possible_ to solve?" with "And what's the best possible / most realistic approach?" They can't answer (b), which is a much more complex question, so get pessimistic about (a). Hard to get ppl out of this mindset.
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michael_nielsen 21. stu
Have you looked in much depth into Herzog's analysis? It's much more pessimistic on the thermodynamics than Lackner. I must admit, I think it's probably just wrong (trees seem to be a cheap way of doing DAC, thermodynamically), but there's a lot of details.
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