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this post was submitted on 03 Mar 2024
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Hydrogen, released directly into the atmosphere, interacts with methane and increases it's half life. And since Methane is 50x more powerful as a greenhosue gas than CO2... that's bad.
When you "burn" hydrogen, on the other hand, you're converting it into water. Which is obviously harmless.
So, capturing this hydrogen wouldn't just be "carbon free" it would potentially be "carbon negative" at least in terms of it's actual actual impact on climate change which is generally what people mean when they talk about carbon these days.
Hydrogen in out atmosphere is generally not a big problem, so it doesn't get talked about much at all... but if you're going to talk about the greenhouse gasses to install an mining rig... then you are getting into territory where that type of thing is significant.
Trust me, it doesn't take much energy (and therefore not much carbon) to produce a mine to extract more energy. If it did nobody would ever do it.
Water too is a powerful greenhouse gas and burning hydrogen in cars isn't a perfect combustion.
I feel it's lying to call it carbon negative but I can see companies trying to portrait it as lucratively as possible
Damn, you got em