this post was submitted on 07 Jun 2024
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152
How Much Energy Would It Take to Pull Carbon Dioxide out of the Air? (www.wired.com)
submitted 5 months ago by [email protected] to c/[email protected]
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[–] [email protected] 1 points 5 months ago (1 children)

But if it's used as fuel, wouldn't that typically return the CO~2~? Just about all fuels are burned, which creates the CO~2~, and you have to make sure the energy you use to make and transport the fuel is clean, too.

[–] [email protected] 1 points 5 months ago (1 children)

Yes, but overall it would be net negative carbon dioxide emissions.

[–] [email protected] 1 points 5 months ago

How does it stay net negative? Carbon goes into the fuel, which is good, but doesn't like all of it come back out when burned for fuel? My understanding is that these fuels can only really achieve neutrality, and that assumes clean energy used to make the fuel.