bilby
Fair dinkum thinkum
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Los Alamos National Laboratory published a concept paper for making synthetic alcohol and hydrocarbon fuels from atmospheric CO2 back in 2007:We were shortening the workweek steadily from the beginning of the industrial revolution until about 1940. Since then we've been stalled at the 40-hour week. No good reason we couldn't resume shortening it.The existing productivity has come at the cost of lots of jobs, and I made it clear in my statement that I said additional productivity will come at the cost of lots more jobs. We can all be replaced. No doubts there. But unless we manage a nation without 0 employment, that'd be an issue.
Carbon neutral -- it's normal CH4, etc., just not made from dead dinosaurs. The carbon goes into the atmosphere when the fuel is used and comes out when it's recycled. Scientific American had an article on the technology several years ago. IIRC, we'd blow air through some chemical powder that reacts with CO2; when it's absorbed as much CO2 as it can, you heat it up and it emits CO, which we can use as a feedstock to make all sorts of things we normally make from petroleum. They calculated we could stabilize atmospheric CO2 levels by doing this on a scale about the same as the world-wide car industry, and pay for it all with a world-wide 25-cent a gallon carbon tax, assuming we have carbon-free electricity generation.Carbon neutral or carbon free? And how are we capturing that CO2?Heat pumps are a good idea, yes, and underutilized; but you can make carbon-neutral gasoline and heating oil and cooking gas from atmospheric CO2 and nuclear power.
https://bioage.typepad.com/greencarcongress/docs/greenfreedom.pdf
The CO2 can be extracted from the atmosphere by the cooling water for the nuclear power plant that powers the process, as that CO2 is dissolved from the air into the water, as it passes through the cooling towers. It's scrubbed from the water using Potassium Carbonate, and then recovered electrolytically, with hydrogen as a byproduct. This hydrogen then provides up to a third of the hydrogen feedstock for the later stages of synfuel production.
It's likely that this and similar processes could significantly impact efficiency, and thereby somewhat reduce that 25c/gal figure required to make the whole carbon neutral process viable.