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0 pointsthatcat3y ago0 comments

Piping ch4 would lead to release from all the inevitable pipe line leaks and limit the reduction in carbon emission.

0 comments

I think it would reduce the reduction in carbon emission by some percentage, but since we're talking about direct air capture rather than point-source capture, it wouldn't limit the reduction in carbon emission.

pawsforthought3y ago

Methane’s much higher global warming potential (versus carbon dioxide), implies that there’s a threshold of methane leaks above which the warming would be worse than if you did nothing at all.

dhsysusbsjsi3y ago

Doing the math, methane is around 30x worse than CO2.

So say you pulled down 30 units of CO2 and 1 unit of Methane leaked (3%), you’re back to square one. Not to mention the Methane will be burned into CO2 again so this closed cycle isn’t so closed.

This study suggests up to 9% is leaked currently:

https://news.stanford.edu/2022/03/24/methane-leaks-much-wors...

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