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>Who cares if you're a global jet setter generating hundreds of tons of co2, if you're properly sequestering them "Sequestering" carbon is, right now, complete

>Who cares if you're a global jet setter generating hundreds of tons of co2, if you're properly sequestering them "Sequestering" carbon is, right now, complete science fiction. Nobody can actually do it. The most that can be done is paying to maybe prevent other people from emitting -- but the emissions always go up. So if one day proper carbon capture technologies exist, this argument can be made. Right now, it can't.

gruez 4y ago
>Nobody can actually do it They can. https://www.cnbc.com/2021/07/23/these-companies-are-sucking-carbon-from-the-atmosphere.html https://www.cnbc.com/2021/07/23/these-companies-are-sucking-...
- TremendousJudge 4y ago
  I should have made it clearer -- by "actually" I mean "in a net negative way". Otherwise it's useless. It's not clear at all from the article, or from any other of these carbon capture schemes I read about (just yesterday there was one in the front page of HN -- and in fact, _that_ article[0] said that this method literally burned gas for heat), how they achieve this. Because the country this is installed in uses fossil fuels for its electricity. Not to mention all the logistics equipment (trucks) necessary to have this plant in operation. And burning fossil fuels to pull carbon out of the atmosphere is never going to make sense due to thermodynamics -- even at 100% efficiency, you'll only break even. Which makes me very suspicious that the biggest investors are always oil companies, as though they can burn all the fuel they extract from the ground and also capture all the carbon it emits. Which is not possible, but maybe they hope that with enough sleight of hand nobody will notice. [0] https://spectrum.ieee.org/carbon-capture-2657738131 https://spectrum.ieee.org/carbon-capture-2657738131
  - gruez 4y ago
    >It's not clear at all from the article, or from any other of these carbon capture schemes I read about (just yesterday there was one in the front page of HN -- and in fact, _that_ article[0] said that this method literally burned gas for heat), how they achieve this. Is this specific enough for you? It seems to avoid all the pitfalls you mentioned. https://climeworks.com/co2-removal https://climeworks.com/co2-removal
suoduandao2 4y ago
What is your criticism of this technology? https://www.youtube.com/watch?v=4Z75A_JMBx4 https://www.youtube.com/watch?v=4Z75A_JMBx4
- deleted 4y ago
  [deleted]

gruez 4y ago

>Nobody can actually do it They can. https://www.cnbc.com/2021/07/23/these-companies-are-sucking-carbon-from-the-atmosphere.html https://www.cnbc.com/2021/07/23/these-companies-are-sucking-...

TremendousJudge 4y ago
I should have made it clearer -- by "actually" I mean "in a net negative way". Otherwise it's useless. It's not clear at all from the article, or from any other of these carbon capture schemes I read about (just yesterday there was one in the front page of HN -- and in fact, _that_ article[0] said that this method literally burned gas for heat), how they achieve this. Because the country this is installed in uses fossil fuels for its electricity. Not to mention all the logistics equipment (trucks) necessary to have this plant in operation. And burning fossil fuels to pull carbon out of the atmosphere is never going to make sense due to thermodynamics -- even at 100% efficiency, you'll only break even. Which makes me very suspicious that the biggest investors are always oil companies, as though they can burn all the fuel they extract from the ground and also capture all the carbon it emits. Which is not possible, but maybe they hope that with enough sleight of hand nobody will notice. [0] https://spectrum.ieee.org/carbon-capture-2657738131 https://spectrum.ieee.org/carbon-capture-2657738131
- gruez 4y ago
  >It's not clear at all from the article, or from any other of these carbon capture schemes I read about (just yesterday there was one in the front page of HN -- and in fact, _that_ article[0] said that this method literally burned gas for heat), how they achieve this. Is this specific enough for you? It seems to avoid all the pitfalls you mentioned. https://climeworks.com/co2-removal https://climeworks.com/co2-removal

suoduandao2 4y ago

What is your criticism of this technology? https://www.youtube.com/watch?v=4Z75A_JMBx4 https://www.youtube.com/watch?v=4Z75A_JMBx4

deleted 4y ago
[deleted]