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M95D 3 days ago

> carbon negative energy consumption

There is no carbon negative energy consumtion.

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markvdb 2 days ago | parent [-]

CO2 capture can be carbon negative, even if it consumes energy.

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M95D 2 days ago | parent [-]

CO2 capture is carbon negative by definition. That's not what I said.

There are some experimental methods of capturing CO2 (or rather just carbon in CO2), but I replied to a proposed negative tax on economic activities that are carbon negative as energy consumtion. There are none. There's only experimental carbon capture with no products and no services generated as an output of this "economic activity" that consumes energy and CO2 as inputs. And it costs money - a lot more money than what CO2-positive economic activities could generate if all their CO2 were to be captured.

	▲	markvdb 2 days ago \| parent \| next [-]
		A negative tax wants carbon negative processes to exist. That clear direction is more important than whether these processes currently exist. Experimental olivine based carbon capture looks promising to this uneducated bystander, but what do I know? In any case, I'm not expecting climate action. Many either don't know how to even start fixing this mess. Others would rather have their own children boil than to potentially give up some material conveniences.
	▲	defrost 2 days ago \| parent \| prev [-]
		> CO2 capture is carbon negative by definition Really? It's certainly not in actual practice - the largest actual carbon capture and sequestration projects on the globe to date are, by definition, carbon release reduction programs that are intended to store back a small percentage of what will be released as part of large natural gas extraction projects. (eg: proposed Browse Basin (~400 km (250 mi) off NW coast of W.Australia) expansion) (also: Chevron’s Gorgon project, the biggest CCS operation: https://australia.chevron.com/what-we-do/gorgon-project/carb... -- https://en.wikipedia.org/wiki/Gorgon_Carbon_Dioxide_Injectio... -- https://ieefa.org/resources/gorgon-ccs-underperformance-hits... -- https://australiainstitute.org.au/wp-content/uploads/2020/12... ) It's a simple (albeit technically complex) proposition - puncture a gas basin, release large amount of CO2, grab some of that and stuff it back in the hole. Overall a net positive amount of CO2 is released, before addressing any further release as a by product of consuming the LNG, etc. But it's called CCS (carbon capture and storage) because carbon is captured and stored. There are no larger programs at scale on the planet, they are net CO2 release programs, and less CO2 would be in the atmosphere if no LNG was extracted at all.