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They mention that this will limit the amount of child labour used in cotton farming. What worries me, is what those kids will then do instead. They're working because their family needs the income, so these children will be pushed into more perilous work if their farming job disappears

There needs to be some kind of programme that compensates these families to ensure that this production method doesn't make the situation worse. Could be part of a scheme where the families are paid if their child attends school.

Prostitution. I recall a campaign to shut down some Indian rug making factories because of child labor. A welfare group did a follow up to ensure the children were not working in some other factory. Almost half had become street prostitutes.
While (obviously) child prostitution is awful, we should be careful to not slide into "child labor is good, actually". I don't have any solutions here.
You have identified a key problem in modern capitalism.

None of the answers that actually solve the problem in good ways can be found in "more capitalism".

Kids will attend school if and only if their families send them. The expected economic value this week needs to be higher than the value of putting the kids to work. Saying that educated kids will have a higher economic value in the future is useless in the short term.

Long term, the countries that haven't gone through the demographic transition need to be pulled through it.

Completely agree with your comment.

What makes me annoyed about statements like "this will reduce the amount of child labour used to produce X" is that they're almost never followed up with an explanation on how to deal with the fallout of the loss of income for the affected families. It's a marketing strategy to make consumers feel good about not supporting child labour, not about improving the lives of those children.

I didn't include it in my comment, but my suggestion would be to put a tax on a product like this that is used to replace the lost income of these families.

It would have to be global to reach a scale that would have the required impact, which means that it will, unfortunately, never happen.

I'm much more educated than my parents and I make much less than them. Higher education is appealing no more, on average.
Will it be as expensive as lab-grown meat? I think cost is going to be the #1 success factor for this innovation.

Personally, I love natural fibers for my clothing and can't stand synthetics (other than for fitness gear), so am very interested in this development.

How cheap would lab grown protein be if they don't care about taste?
I suppose that depends if you still wanted it to vaguely resemble meat or were fine with a yeast smoothie. Pretty much every beer brewery could likely grow some kind of complete protein microorganism given barley feed stock.
Essentially Marmite or Vegemite... Certainly an acquired taste. And somewhat comparable to Bovril, but not something to replace meat...
Yeah, if that were to be the new staple protein option, it would rank only marginally better than Soylent Green.
You can purchase spirulina culture online and grow your own protein source.
They don’t care about tasteless as in it tastes like nothing or it tastes foul and has a terrible odor and texture?
Tasteless would be best as a dirt cheap replacement for plant protein in animal feed.
At minimum, you do not need end to end certification that everything is fit for human consumption. That feels like a potentially huge cost savings vs bioreactor meat.
Lab grown meat is expensive due to its low volume. That should change as volume ramps up.

It’s also relatively expensive compared to the feedlot stuff in part for the reason above and in part because externalities (e.g. GHG emissions) are not priced in yet.

The promise is that on a net/net basis the lab will be better. We’ll see.

As a diabetic I get a lot of protein and calories from meat bc I don’t want a lot of carbs. I’d be much happier with lab-sourced animal proteins, especially if there were a little game from time to time. Factory farm meat lacks a lot of flavor anyway.

Lab grown meat is not going to be easy to scale up. Keeping giant bioreactors free of contaminations is hard.
I remember reading on HN, on more than one occasion, that the unit cost of production of lab grown meat is always going to be very high.

https://news.ycombinator.com/item?id=28621288

I’m hopeful that there will be enough economic incentive to tip the balance. But nobody knows right now.
Uzbekistan in crisis mode
I admit that I've largely given up on cotton. I know there's still the issue of micro-plastic waste to consider, but in other respects, synthetics just seem to work better. They last longer, are quick-drying, and stain resistant.

The latter two features are important since I get around town by bike, and am at the mercy of the weather, plus annoyed when my pants touch my bike and acquire permanent black stains. That stuff washes right out of my synthetic pants.

Meanwhile, I perceive that cotton clothing has gotten worse, most notably wearing out sooner. I probably won't buy any more blue jeans, even name brand, though it's not unthinkable that the ones I've gotten recently are counterfeit.

Fortunately I live in a casual town, and my job is "engineering casual." ;-)

I'm not sure about the relative environmental impact of a pair of cotton jeans that lasts a year, or a pair of hiking pants that lasts six years.

Wool is the ideal natural fiber for bad weather. Definitely not cotton.
Wool is not good in hot weather though? Of course neither is cotton, really, it gets soaked in sweat and is slow to dry.
Cotton or linen only in hot weather. Not that thick fruit of the loom stuff but some good fabric that is thin enough to breathe, but it's still cotton so it's wicking moisture. Evaporation results in a cooling effect so long as the cotton is thin enough. That's the only way to go in the heat (imo). Cheap old men's dress shirts from the 80s that are still 100% cotton and have been washed too many times.
I use wool socks year round, even during summer for hiking or general purpose except at the gym. They are excellent for rains too.
I can tell by the way you are hyping up synthetic clothing that you've never stepped foot in a humid town/city where you are constantly sweating buckets. The way synthetic clothing sticks to your skin would probably make you want to walk around naked all day.
But there are synthetics that handle sweat/moisture way better than cotton. For example: it's technical wear, but Patagonia's sun hoody [1] is one of my all-time favorite pieces of clothing.

Consider what football players wear. Nobody's wearing wool or cotton jerseys any more! Synthetics wick better, stretch better, and dry better. The biggest downside is the microplastics they make when you launder them. Supply-chain wise, they might still be better than most cotton, though.

1) https://www.patagonia.com/product/mens-tropic-comfort-natura...

Proper synthetics handle sweat much better, so much so that i can barely wear cotton in the summer (live in hot climate). Also i remember throwing away cotton clothes much more often. I wish there was more synthetics beyond sports clothes because they make life just so easier (they also wash and dry easier)
The plastic waste thing is a pretty big deal in my eyes.

I try to completely avoid any synthetics and wish they were taxed into oblivion to account for externalities like polluting entire ecosystems.

Mind you, high quality synthetics are probably fine if you plan on wearing them for 20+ years.

What bothers/worries me is that fast fashion is pretty much entirely synthetics based and sells enormous quantities.

What's actually happening to the plastic? It can't be coming off my clothes in the washing machine at any profound rate, yet remain good as new for years. If I dispose of something in my locale, it goes to a sanitary landfill and will never see air, water, or sunlight.

I'm oblivious to fashion, much less fast fashion ;-)

Is there an ecologically responsible way to use synthetic clothing? Natural materials are not without their environmental impact either.

Have you checked your lint trap?
Yes, the cotton fabrics (sheets, towels) produce a lot of lint, the synthetics practically none. That's consistent with the cotton stuff wearing out more quickly.
Cotton is probably bad for biking anyway as it’s a sponge so your sweat will just leave you with a drenched shirt.

But I am trying to avoid plastic clothes because of their environmental impact, and possible leachate ending up in (or through) my skin.

Wool, and cotton/wool blends work for me even in the summer. Amazingly a return to my childhood in this regard! But they are a little more work to look after than the plastics.

> ...I perceive that cotton clothing has gotten worse...

Well documented problem. There has been a drastic decline in production of high quality cotton over the past two decades. I think the biggest change has been in Egypt, but there was also a major shift in USA production. Lower quality cotton gets larger crops and has been more profitable. Egyptian cotton used to be high quality because a government agency forced farmers to produce the better stuff in order to maintain the reputation of "Egyptian Cotton". The political turmoil after the Arab Spring disrupted that. You can find many articles about the resulting decline in quality of cotton clothing and bed linen.

Curious to see how this pans out
'10 year, $50M partnership' - that's a bit low isn't it for any significant amount of cotton/year?