On: Hydrogen lobbyist quits, slams oil companies’ “false claims” about blue hydrogen

[amanaplanacanal]

As long as it isn't adding fossil carbon, it seems fine to me.

[Lio → amanaplanacanal]

Methane is reputedly much worse for global warming than CO2 though. I’ve heard 4x worse before.

If that’s true then inevitable leaks of unburnt methane would not be a good thing at all.

[leoedin → Lio]

It is, but only for a short time - I think 9 years or so. It's broken down in the atmosphere into CO2 and water.

[mech422 → leoedin]

So its worse the C02 for 9 years...

And then _becomes_ CO2 ?

Not seeing how this is a win?

[leoedin → mech422]

As long as the carbon contained in that methane comes from environmental carbon, rather than fossil carbon, the net effect on CO2 levels is 0.

If a tree absorbs CO2 to grow, dies, gives off methane and that methane eventually turns back into CO2, it's not a problem. That's just the natural carbon cycle.

The problem is that we're constantly injecting more carbon from deep underground into that carbon cycle. It's why biofuels are essentially carbon neutral.

[beervirus → amanaplanacanal]

Where would the carbon come from that turns hydrogen into methane? It’s not being sucked out of the air.

[masklinn → beervirus]

> It’s not being sucked out of the air.

It could be if it comes from wood or charcoal (though that seems unlikely).