I will respectfully disagree with @TricksyRaccoon on the usefulness of this kind of degrowth too.
I do appreciate Meg (and Kendra) spotlighting this aspect of the conversation though since the back + forth over macro-level economic growth tends to suck up all the oxygen (THREAD)
I don’t feel it’s generally wise for activists or policymakers to try deciding which industries/products we really need + which are unnecessary.
My reasons fall into five categories (1)
1. Little climate impact 2. Difficulty of implementation, political infeasibility 3. Rebound effect i.e. regulating some products just channels energies into others 4. Access to affordable goods 5. Forest of industries reflects human aspirations as much as corporate greed (2)
First, important to recognize regulating this/that category of consumer goods likely has negligible climate/enviro impact.
To take Meg’s example which I interpret as a light jab at toymakers, I’m pretty sure the global toy sector is a negligible fraction of world emissions. (3)
Plastic earns hate for many valid reasons, yet a bag of plastic army men honestly may equal less co2 emissions than a couple toy soldiers cast from metal? Plus, compared to diesel or jet fuel, plastic is by far one of the less emissions-intensive oil/gas industry products. (4)
And in a net-zero world of electric cars, ammonia-powered ships, and hydrogen-fueled heavy industry, consumer products will be manufactured at low to no climate cost.
In this clean energy future, plastic demand alone will not save the oil and gas industry. (5)
I don’t know how the combined carbon footprint of all the LEGOs, dollhouses, toy boats, etc… across history is compared to, say, the cumulative emissions needed to build all of Seattle’s skyscrapers is, but I suspect it's ultimately not very large... (6)
Sure though, if one went through every single group of products humanity makes and classified them as necessary or wasteful, then added up all the wasteful ones, the global total embodied emissions are probably very hefty, but individually each is really small. (7)
It’s almost like the individual action question all over again. Theoretically individual people/producers cutting impacts can produce a meaningful cumulative effect, but is that really the level of society where changes should be pursued? (8)
Each individual industry, say LEGO, could quite accurately argue before the government that regulation is unreasonable since their climate impact is infinitesimally small. Which brings me to my next point about implementation/feasibility. (9)
“Should we or shouldn’t we?” is an important Q, but the critical Q for this sector by sector, product by product approach to degrowth is “How do we actually get this into law?” As we have painfully learned, industries fight to the death while getting marched to the wall. (10)
By labeling a company, group of companies societally unneeded and in need of degrowth, one makes highly committed (and often very powerful) enemies unnecessarily. Climate action doesn’t need any more strong political interests as opponents. (11)
Those opponents aren’t just limited to suits in corporate boardrooms. You really do make political opponents out of workers in those sectors too, and potentially of the lawmakers that heavily represent them. (12)
There’s also the question of mechanism to get laws passed.
Do you try and use a specific free-standing piece of legislation to ban unnecessary plastic in toys, luxury fossil cars, fast fashion, gag-gift fridge magnets, etc… or do it as part of a larger climate package? (13)
If proposed as a free-standing law, I think we can all agree that has zero political hope.
And if included in a larger climate package, well, I’d much rather cut it out than torpedo the odds of a clean energy standard, clean vehicles mandate, etc… from passing. (14)
At best, maybe one successfully slips in some language about banning excessive packaging or plastic bags, but we all know that means zero for the climate broadly. Anything more substantial just has no political route to enactment whatsoever. Court challenges also exist. (15)
Thirdly, even if one did succeed in, say, banning luxury gasoline cars, boats, and planes, I suspect some degree of a rebound effect would occur. I don’t understand the appeal personally, but conspicuous consumption has a record in human history well predating capitalism. (16)
I feel regulating consumption of many unnecessary things would replace it with consumption of other unnecessary products + services. Assuming enforcement isn’t inadequate or gutted by grandfather clauses + loopholes. Or noncompliance. I mean, we’ve tried Prohibition already. (17)
But lets return to where this convo started about superfluous, unneeded/unwanted cheap goods.
My fourth point is that cheap plastic garbage does have some social value, in that it’s easily accessible. (18)
When my Dad was growing up (Mom grew up richer, if still in an apartment of 8 family members), any kind of manufactured toy was a luxury. The advent of plastic toys has undoubtedly created waste, but it’s also made toys more widely available. (19)
Plastic dinnerware, washbins, furniture, jewelry… it’s non-biodegradable, but also cheap + accessible. That cheap fan that breaks after a few months? An affluent family might toss it out, but a less affluent family can afford it and will tinker to keep it running. (20)
Fifth and last, I think it’s easy to identify corporate villains behind the torrent of mass marketing and the explosion of seemingly superfluous industries and products. But I feel it’s important to recall that there are a lot of dreams and aspirations at work here too. (21)
That isn’t to say that there aren’t ANY superfluous industries (who *are* these extended car warranty people??).
But for every Big Toy company making Dollhouse version 45QXZ11B, there’s also a toymaker who has a grand idea about dollhouses for boys. (22)
I dislike superhero films + the world may not *need* eight different Shang-Chi action figure models when Marvel finally debuts their 1st Asian superhero a decade too late, but if I had my own Asian kid at the right age...
I don’t think these toys existing is all bad. (23)
The “All-Natural” energy drink replacement for caffeine I keep getting Youtube ads for? I might think it’s ridiculous and unnecessary, but there are probably a handful of hardscrabble entrepreneurs in an office somewhere for whom this is a dream of sorts. (24)
So I think we need to recognize that some of the pushing for growth we feel around us doesn’t come just from late-stage capitalism but also genuinely represents many aspirations at work, and I think a high amount of care is needed in legislating which are worthwhile and not. (25)
To sum up, evaluating some of degrowth’s more micro-lvl ideas, I’m really not sure they’re justifiable in principle or would have real climate impact.
And such ideas are infeasible politically to the point of distracting from/damaging more important climate efforts. (26 - END)
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Amused that Alexander Zaitchik @newrepublic attacks @billmckibben’s citation of my paper on clean tech minerals in critiquing McKibben’s “ecomodernist optimism” on green growth, yet doesn’t point to anything specifically wrong with my research.
Spoiler: I’m right.🧵
I think this is an example of the shallowness of some pushback against ecomodernism. Despite revering "scientific" refutations of growth, critics often don’t actually read underlying research, let alone offer specific critiques of research they dislike.
Zaitchik’s core critique of my work is:
- I find global mineral reserves suffice for decarbonizing the power generation sector to 2050 for nearly all minerals in 75 scenarios.
- but another Cornell/UMichigan study finds copper can’t “be mined fast enough” to electrify the US.
Ketan mocks inertia chatter re: Spain outage while misunderstanding inertia. Inertia doesn’t scale with generation output but rather with spinning generator mass. Spain had 4 reactors online, 2 at 70% power. Inertia equivalent to 4 reactors at full power!
More thoughts below.🧵
In his blog post + thread, Ketan shares ~10 graphs of Spanish grid data to show how in April 2025 Spain’s nuclear fleet was generating at historic record lows. Except it’s largely misleading as nuclear generation is a poor proxy for the % of grid-forming resources on the grid.
Inertia scales w kinetic energy of spinning generators, which are synced to grid at fixed rpm even if output to the grid is reduced.
Spain: 2/4 nuclear units at 70% power but inertia equiv to 4 units at full power. This is in line with other past spring/fall shoulder seasons.
21 House Republicans just wrote a letter urging continued IRA energy credits. Most have solar/wind projects or clean tech factories in district, or are in swing districts. THREAD🧵
Arizona 6th - Juan Ciscomani - Many solar projects. Battery factories in Tucson. Swing district.
California 20th - Vince Fong - Bakersfield area, R+16 district but lots of solar and amazing solar resource potential especially to the southeast near Edwards Air Force Base, some good wind resource in the Tehachapi Mountains.
California 22nd - David G. Valadao - Bakersfield area neighboring the 20th district, lots of solar developments in the larger I-5 highway corridor. Competitive district.
To supply low-carbon power to a grid via nuclear, solar, wind, or grid batteries, how much material must we dig up to build those power plants?
Answer: far less than for fossil fuels, with nuclear needing the least mining. New @TheBTI report by my team: thebreakthrough.org/issues/energy/…
Big takeaways:
Coal? Digs ~1.18 million kgs of rock+coal per GWh for fuel only
Solar+wind have improved much in last 10 yrs
Nuclear still needs least mining + critical minerals per GWh
Cu, steel, Ni, Li, U, Ag offer ways to improve mining footprint further thebreakthrough.org/issues/energy/…
What inspired this analysis? Energy transition mining remains divisive, but discussions often cite flawed or out-of-date data, or end up handwavy. For this analysis, we wanted to make an up-to-date comparison, w transparent methodology using public sources apps.openei.org/REMPD/
From 2018 to 2023, silver use in solar PV cells has dropped by around half! (h/t @solar_chase)
Indeed academic papers (incl my own) tend to lean several yrs out of date. But industry intel is often paywalled, hence my habit of obnoxiously saving whatever nuggets I come across.
This is a clear example of why getting the stamp of peer-review doesn't mean something is right or the golden truth of science.
The most crucial round of peer review is really the permanent, continuous reactions/feedback from other experts once a study is actually publicly read.
I had assumed 10g per watt in my @Joule_CP paper, and had thought afterwards that might've been generous--but now it's right on the money.
Where I was way off was concrete, which is no longer used to anchor solar mountings in most utility-scale plants.
Finally found time yesterday evening to take an unofficial satellite's-eye-view tour of the quasi-legendary Spruce Pine ultra-high-purity quartz mine in North Carolina.
It'd be an understatement to say this mine is currently key to the semiconductor + solar PV industries. 🧵
IIRC, there's no other ultra-high-purity quartz mine of this scale, creating quite the potential bottleneck. A fire at a Spruce Pine facility may have contributed to the 2008 spike in polysilicon prices that arguably set off the last decade's solar boom.
Ultra-high-purity quartz is used for chip factory tools + crucibles used to contain molten silicon during manufacturing of ultrapure monocrystalline silicon ingots for chips + solar PV wafers via the Czochralski process. Pure quartz reduces impurities in the resulting product.