Technically, our economy (especially construction and transport) requires liquid hydrocarbon fuels. At the moment, the most economic way of providing those fuels is directly from fossil fuels. However, once nuclear fission is properly restarted (see, for example, China’s massive build out of nuclear power), it will be possible to manufacture liquid hydrocarbon fuels as required.

The “greenie” suicide of the West from rejecting both fossil fuels and nuclear fission is optional. Other societies will make better choices — and will survive & prosper.

A modern economy requires fossil fuels. We will have such an economy only as long as fossil fuels last, probably a thousand years or so at current rates of consumption.

The climate lunatics will not only shut down industry, they will also shut down modern agriculture. That will lead to massive population decline and the return of some form of slavery. Every pre-industrial society, including hunter-gatherers, was a slave society — no exceptions.

‘We will produce $1/kg green hydrogen from which to synthesize natural gas. There are a couple of necessary preconditions.

1) Electricity <$10/MWh. There is no other way, the math dictates cheap energy needs cheap energy.

2) Electrolyzer <$100/kW for speedy ROI.'

Terraform Industries looks liked a better bet to me.