anlomedad

Wow. This is really harsh criticism👍 of integrated assessment modelers and engineers who hide everything that challenges their lifestyle in fairy tales about CCS and H2. Allwood shows how #paper, #steel, #cement, #aluminum, #plastic, and #glass can only become climate-neutral through degrowth.
https://www.nature.com/articles/s44286-025-00344-1

The best thing is his harsh language. He takes no prisoners, but shoots liars on sight.
No wonder. After all, it was their lies that always prevented greenhouse gas reductions from being implemented quickly enough to match the risk. Academia bears a huge share of the blame.
#CCS #ClimateChange #IAM #SharedEconomicPathways #Degrowth #EconObscene #Economics #ClimateEconomics

Too late for CCS and hydrogen - Nature Chemical Engineering

Fifty years after it was commercialized, global carbon capture and storage (CCS) capacity is equal to 0.09% of global emissions. Meanwhile, global emission-free electricity generation grows at a steady, linear rate. This Perspective argues that it is now too late for CCS or hydrogen to make a substantial contribution by 2050, so other solutions are required to decarbonize industry.

Nature
Feb 27 at 6:13pmWeb
Show threadPaleBlueDot is turning REDFeb 28
@anlomedad uhm all correct except about green H2 (why?!)
Show threadanlomedadFeb 28

@____

It's the scaling-up that would be required to meet demand by 2050 but is nowhere in sight. And can not be accomplished because demand for these materials continues to grow. It's a race between fox and turtle.
Allwood argues that demand has to shrink, and shrink drastically.
In one passage on page 29, he recounts some of the history as it pertains to today's challenge.

Only if demand declines radically [for materials that need green hydrogen to become climate-neutral] does the build-up of electricity generation from renewables have a chance to meet demand.
And only if electricity demand declines radically can electrification of energy use be accomplished.

Here are the pages in screenshots.
https://www.nature.com/articles/s44286-025-00344-1