this post was submitted on 22 Mar 2026
563 points (96.4% liked)
Science Memes
19602 readers
1722 users here now
Welcome to c/science_memes @ Mander.xyz!
A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.
Rules
- Don't throw mud. Behave like an intellectual and remember the human.
- Keep it rooted (on topic).
- No spam.
- Infographics welcome, get schooled.
This is a science community. We use the Dawkins definition of meme.
Research Committee
Other Mander Communities
Science and Research
Biology and Life Sciences
- !abiogenesis@mander.xyz
- !animal-behavior@mander.xyz
- !anthropology@mander.xyz
- !arachnology@mander.xyz
- !balconygardening@slrpnk.net
- !biodiversity@mander.xyz
- !biology@mander.xyz
- !biophysics@mander.xyz
- !botany@mander.xyz
- !ecology@mander.xyz
- !entomology@mander.xyz
- !fermentation@mander.xyz
- !herpetology@mander.xyz
- !houseplants@mander.xyz
- !medicine@mander.xyz
- !microscopy@mander.xyz
- !mycology@mander.xyz
- !nudibranchs@mander.xyz
- !nutrition@mander.xyz
- !palaeoecology@mander.xyz
- !palaeontology@mander.xyz
- !photosynthesis@mander.xyz
- !plantid@mander.xyz
- !plants@mander.xyz
- !reptiles and amphibians@mander.xyz
Physical Sciences
- !astronomy@mander.xyz
- !chemistry@mander.xyz
- !earthscience@mander.xyz
- !geography@mander.xyz
- !geospatial@mander.xyz
- !nuclear@mander.xyz
- !physics@mander.xyz
- !quantum-computing@mander.xyz
- !spectroscopy@mander.xyz
Humanities and Social Sciences
Practical and Applied Sciences
- !exercise-and sports-science@mander.xyz
- !gardening@mander.xyz
- !self sufficiency@mander.xyz
- !soilscience@slrpnk.net
- !terrariums@mander.xyz
- !timelapse@mander.xyz
Memes
Miscellaneous
founded 3 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Natural gas is used to produce hydrogen, which is then used in the Haber-Bosch process to produce ammonia from nitrogen in the atmosphere. Only about 6% of natural gas is used to produce hydrogen, so even if the price were to rise substantially, we could divert natural gas from other uses and have plenty for making ammonia. We also have other ways of producing hydrogen, it's just that natural gas is more established.
PEM electrolyzers paired with cheap solar in countries with high insolation can now produce hydrogen for less than the cost of natural gas, but we're only recently starting to see the construction of the large-scale green ammonia plants needed to accomplish this. Egypt is currently constructing a 100-MW green ammonia plant powered by solar energy. Even if you didn't have enough PEM eletrolyzers you could still just pass current through some salt water and produce hydrogen, albeit much less efficiently.
It's not going to be a catastrophic issue.
Adding to that, logistics are such that direct impact will be felt strongest in places like India that rely heavily on Qatari LNG to make fertilizer, but many places have other sources of both gas and fertilizer. Americas, EU, Russia and China will get by because they have their own supply and will be only affected by price increase
Fun fact: Fritz Haber, the German guy that invented the Haber-Bosch process is the same Fritz Haber that developed a way to use the chlorine gas in chemical warfare. He was personally overseeing its effect in the battle of Ypres.
Clara Immerwahr, who was married to Fritz Haber and was a successful chemist in her own right, spoke out against his research as a "perversion of the ideals of science" and "a sign of barbarity, corrupting the very discipline which ought to bring new insights into life." She ended her own life the day before he traveled to the eastern front to oversee the use of chlorine gas against Russian troops.
Dude knew his chemicals
Habe~~r~~n wir einen an der Waffel? Ja
Thank you for explaining the process, because the pro-fuel-cell pact doesn't understand that hydrogen isn't free and production is still heavily reliant on fossil fuels.
"Oh it comes from ammonia". Alright, where does the ammonia come from???
You're just moving the problem around, not fixing anything.
You'll make hydrogen from renewable energy. That is the point.
But why not just make electricity from renewable energy?
Like, I get the benefit of fuel cells, but people need to realize that hydrogen closer to a battery than a fuel source itself. You're expending energy now to make storage of energy that can be tapped later.
It's good for places where vehicles can't tap into the grid and need dense energy storage (i.e. transoceanic freighters), or where long charging times are infeasible (like long-range trucking).
And probably good for grid-level storage, too.
But for a typical family car/commuter? There's really no point. You're adding more steps in energy conversion, and losing efficiency at every additional step (thanks to basic physics), and to gain what? A faster refueling time on a long road trip? An experience closer to what we were used to with ICE-cars? An experience that really isn't that great anywhere that has a winter. Or an excessively hot summer.
Maybe for people who can't have a charger at home, even an L1, but there are better solutions for that (like...adding an outlet? Making landlords responsible for providing power whenever there is parking? More municipal charging locations?)
You can't fertilize crops with electricity, nor can you eat it
Making food from pure electricity would be a cool sci-fi thing
You can't store electricity by itself. The problem we are facing is massive curtailment, i.e. massive overproduction of green energy that can't be utilized. There needs to be way of storing it at a massive scale. There is no feasible way of storing that much energy in conventional batteries.
If you can acknowledge that hydrogen is needed for dense energy storage and grid-level storage, then you should realize that we will eventually have a huge hydrogen infrastructure, and production capacity to match. That will create very cheap green hydrogen, and will mirror what happened with solar and wind.
Cheap hydrogen alone will drive large-scale adoption of hydrogen cars, regardless of the popularity of BEVs. A lot of people will choose hydrogen cars (possible e-fuel cars too, since e-fuels can be made from hydrogen) simply because it is akin to an ICE-car in usage.
The other point is that battery production is not green and is very resource intensive. Hydrogen cars let's you avoid that almost entirely. In the long-run, it will be pointless to care about efficiency when green energy becomes nearly free. That suggests hydrogen, not batteries, is the better idea.
Farmers almost uniformly over-apply N fertilizer. Having it be more expensive and forcing them to look into more efficient ways of applying fertilizer and managing nutrients is not a bad thing.
Unless it just causes the crop to cost more without any change in behavior.
Farmers are price-takers not price-makers. The prices they receive are driven by speculation on the commodities markets (even for crops not traded on the market).
Since they can't control the price they receive for their crop, they are very sensitive to any change in the cost of inputs. Determining how much to spent on inputs is the part of their profitablity they can control. So widespread behavioral change is usually pretty close to immediate.
We can't do any of those in a scale large enough to replace the destruction and have it online for the next planting season on the North Hemisphere. Or the next one on the South Hemisphere either, btw. Or the following ones for each.
Also, while it's still new, plasma nitrogen has the potential to rapidly scale if the economics stop making sense for Haber-Bosch nitrogen.