4 ms·

Inject CO2 into basalt formations, and over the course of a year or so it will turn into rock. There are already several pilot programs doing this, and it's ver

Inject CO2 into basalt formations, and over the course of a year or so it will turn into rock. There are already several pilot programs doing this, and it's very scalable. Other projects apply energy to turn the CO2 into liquid fuel. Of course that returns the CO2 to the atmosphere, but it'll be a long time before we electrify long-haul jets so it'd be great if their fuel were carbon-neutral.

markcyffka 5y ago
There are a few startups exploring this and also PNNL is doing great public work on this topic as well. https://youtu.be/osXq-k84LpA?t=2177 https://youtu.be/osXq-k84LpA?t=2177
- yodon 5y ago
  Thanks, Mark - do you (or anyone else reading this) happen to know offhand any of the startups targeting this approach?
  - subpar 5y ago
    https://www.carbfix.com/ https://www.carbfix.com/
  - markcyffka 5y ago
    We don't claim to be experts on this subfield & this is may not be an exhaustive list, but Carbfix, 44.01, and the Solid Carbon coalition are some that come to mind to check out. We don't speak for those companies but just want to point out some areas to check out. https://www.osti.gov/servlets/purl/1390435 https://www.osti.gov/servlets/purl/1390435 <-- a non-commercial study on this topic. https://youtu.be/osXq-k84LpA?t=2177 https://youtu.be/osXq-k84LpA?t=2177 <-- a webinar that addresses this topic
yodon 5y ago
>Inject CO2 into basalt formations... Thanks for this comment - the calculations I'd been doing in the GP comment and elsewhere where pretty darn depressing and this approach you're mentioning is very exciting in that it bypasses the fundamental storage volume problems most other sequestration methods face by leveraging the interstitial spaces inside existing rock volumes, and also exciting in that it leverages undersea rock formations for even lower impact. Thanks for pointing me to this. For others interested in learning more you might hit [0] or [1]. [0]https://news.climate.columbia.edu/2020/02/19/solid-carbon-macarthur-foundation/ https://news.climate.columbia.edu/2020/02/19/solid-carbon-ma... [1]https://www.nature.com/articles/s43017-019-0011-8 https://www.nature.com/articles/s43017-019-0011-8

markcyffka 5y ago

There are a few startups exploring this and also PNNL is doing great public work on this topic as well. https://youtu.be/osXq-k84LpA?t=2177 https://youtu.be/osXq-k84LpA?t=2177

yodon 5y ago
Thanks, Mark - do you (or anyone else reading this) happen to know offhand any of the startups targeting this approach?
- subpar 5y ago
  https://www.carbfix.com/ https://www.carbfix.com/
- markcyffka 5y ago
  We don't claim to be experts on this subfield & this is may not be an exhaustive list, but Carbfix, 44.01, and the Solid Carbon coalition are some that come to mind to check out. We don't speak for those companies but just want to point out some areas to check out. https://www.osti.gov/servlets/purl/1390435 https://www.osti.gov/servlets/purl/1390435 <-- a non-commercial study on this topic. https://youtu.be/osXq-k84LpA?t=2177 https://youtu.be/osXq-k84LpA?t=2177 <-- a webinar that addresses this topic

yodon 5y ago

>Inject CO2 into basalt formations... Thanks for this comment - the calculations I'd been doing in the GP comment and elsewhere where pretty darn depressing and this approach you're mentioning is very exciting in that it bypasses the fundamental storage volume problems most other sequestration methods face by leveraging the interstitial spaces inside existing rock volumes, and also exciting in that it leverages undersea rock formations for even lower impact. Thanks for pointing me to this. For others interested in learning more you might hit [0] or [1]. [0]https://news.climate.columbia.edu/2020/02/19/solid-carbon-macarthur-foundation/ https://news.climate.columbia.edu/2020/02/19/solid-carbon-ma... [1]https://www.nature.com/articles/s43017-019-0011-8 https://www.nature.com/articles/s43017-019-0011-8