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A comment on Robotic 'trees' can turn CO2 into concrete. Parent comment

Re:Robotic 'trees' can turn CO2 into concrete by 08-15 on Tuesday September 11, 2018 @12:24PM (#17961145)
You know what's the problem with that idea? There are no "sequestration and efficiency innovations".

Sequestration doesn't work and takes too much energy, and efficiency cannot be improved much thanks to thermodynamics.

Besides, if the IPCC is correct about how bad CO2 is, the only sensible cap for emissions is zero. You don't get there with tiny improvements in efficiency.

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Re:Robotic 'trees' can turn CO2 into concrete by throwaway5752 on Tuesday September 11, 2018 @12:36PM (#17961250)
I'm sarcastically saying that we had proposals for a cap and trade system that would have mitigated it but it was destroyed for political reasons.
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Re:Robotic 'trees' can turn CO2 into concrete by 08-15 on Tuesday September 11, 2018 @03:05PM (#17962362)
Obviously. I'm non-sarcastically saying that cap-and-trade won't work, because any meaningful cap is unrealistic to achieve. The political reason is: We want cheap energy. The politically acceptable choices boil down to burning coal or gas, no matter how bureaucracy is layered on top.
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