I've seen a couple articles which push hydrogen but with economics that don't make sense for "green" hydrogen. (Produced by electrolytic cracking of water with

I've seen a couple articles which push hydrogen but with economics that don't make sense for "green" hydrogen. (Produced by electrolytic cracking of water with solar power) Instead these are advertisements for "blue" hydrogen-- cracking natural gas and then injecting the CO2 back into the ground. It's a campaign by fossil fuel companies to preserve some of the value of their capital base, rather than just being shut down entirely. Blue hydrogen will be a lot cheaper, at the cost of fossil emissions from methane and CO2 that escape from the equipment or leak from the wellhead.