Extraction of hydrogen from hydrocarbons releases CO2.
Shhhh don't tell anyone.
Of course if it is coupled with the promise of CO2 extraction/collection, which will make it extremely expense, Shhhh, don't tell anyone.
And extraction of CO2 will be commercially available by the time our end begins in 2030, at the hand of man's CO2.
I think the first goal is to play down the very well established urgency and imminent doom.