[HN Gopher] A global plastic treaty will only work if it caps pr...
       ___________________________________________________________________
        
       A global plastic treaty will only work if it caps production,
       modeling shows
        
       Author : PaulHoule
       Score  : 51 points
       Date   : 2024-05-13 17:16 UTC (5 hours ago)
        
 (HTM) web link (phys.org)
 (TXT) w3m dump (phys.org)
        
       | martinbaun wrote:
       | I dislike getting poisoned by microplastics as much as the next
       | guy, but a treaty like this decided by some global elite might
       | have some unintended consequences. Like they always do..
       | 
       | This probably wont affect the average HN, but all of our food and
       | medicine is using plastics for a reason. It is cheap, sterile and
       | safe. If you're poor and the price of shippings/storing your food
       | becomes significant more expensive then you'll even more screwed.
       | Again, probably wont affect you or me, but these things always
       | have bad unintended consequences.
        
         | mihaic wrote:
         | I think at this point the unintended consequences argument has
         | been overused.
         | 
         | There are significant intended consequences that implementing
         | something like this would have. I order for this to be
         | negative, the unintended consequences would need to be larger,
         | and I think it's hard to see that happening.
         | 
         | Reading the article between the lines though, it seems like
         | global coordination is required, and the biggest challenge is
         | getting the top 5 producers in line (China not being mentioned
         | by name/exact number feels evasive by the authors).
        
         | tialaramex wrote:
         | Plastic appears in a lot of "convenience" products which I
         | wouldn't expect to be popular with the poorest people in the
         | world. Plastic bottle of water? Convenient but not an efficient
         | or reliable option.
         | 
         | And while you can probably find a "bad unintended consequence"
         | for everything if you try hard enough, it's usually the case
         | that these bad effects are far smaller than the thing we set
         | out to achieve.
        
           | idontwantthis wrote:
           | Are you saying you assume plastic bottled water and
           | convenience items are not popular in the poorest places in
           | the world?
           | 
           | That's most definitely not the reality. South east asian
           | cities are littered with takeout containers and bottles.
        
             | martinbaun wrote:
             | I haven't been to asia, but I could imagine that plastic
             | bottled water isn't a convenience good, but a way to avoid
             | getting sick from polluted tap water.
        
               | stevenwoo wrote:
               | My limited experience is in Southeast Asia and Mexico
               | tourists used bottled water and natives do not, at the
               | time I went ages ago it was the recommended behavior but
               | the rivers in Southeast Asia had lots of what appeared to
               | be single use containers, there was simply no larger
               | cultural impetus to dispose of stuff properly. OTOH
               | riding my bike around SF Bay Area there is always
               | discarded fast food wrappers and packaging along paved
               | roads, a few of us can't be bothered even in one of
               | wealthiest parts of USA.
        
               | idontwantthis wrote:
               | You have filtered water delivered to your home or you
               | drink bottled water. If you are away from your home and
               | you need water, you buy a bottle. Everyone only drinks
               | bottle water in Cambodia/Vietnam/Thailand unless you are
               | so desperately poor that you have no choice but to get
               | sick.
               | 
               | Exceptions abound, I'm sure, but it is a necessity not a
               | luxury.
        
               | SoftTalker wrote:
               | Boiling the water will kill any pathogens, but it doesn't
               | do anything for chemical or disolved contaminants. If
               | you're so poor you don't have a pot to boil water in you
               | are desperate indeed.
        
           | dlachausse wrote:
           | Plastic bottles of water are one of the most important
           | supplies you can provide during and after a major disaster.
           | There are so many situations that disrupt access to clean,
           | safe, potable drinking water and pallets of bottled water are
           | the simplest and fastest way to help people in need.
        
             | martinbaun wrote:
             | Didn't even think about this and you're absolutely right.
             | 
             | And where do the worst disasters happen? The countries
             | where the infrastructure is not good enough.
        
           | martinbaun wrote:
           | Perfect example. Bottled water might be a luxury good for
           | you, but in most places in the world you have polluted tap
           | water you can die from or bottled water.
           | 
           | So if you were in charge of this, you might have just killed
           | a few million people from cholera.
           | 
           | https://www.who.int/news-room/fact-sheets/detail/cholera
           | 
           | I can't stress this enough, but there are so many unintended
           | consequences.
        
             | yareal wrote:
             | That's a false dichotomy though. Individual single use
             | plastic bottles and cholera are not the only two options.
             | 
             | Paper packaging, metal packaging, glass packaging, bulk
             | packaging, improved infrastructure, filters, etc. I'm sure
             | there are other reasonable options beyond single use
             | plastic bottles.
        
               | martinbaun wrote:
               | Well, if you're living in "Extreme Poverty", then you'll
               | be earning around $2 a day.
               | 
               | If you're earning $2 a day, then paying $.2 more for
               | bottled water in paper is probably going to be
               | detrimental for you. Around 1 billion people live in
               | extreme poverty.
               | 
               | So yes, there's alternatives for you and me, but not for
               | a billion people.
               | 
               | https://en.wikipedia.org/wiki/Extreme_poverty
        
               | yareal wrote:
               | I'm aware.
               | 
               | A glass bottle has a unit cost increase of approximately
               | a penny per bottle (per CleanMetrics). But the bottle
               | itself can be reused and recycled.
               | 
               | Also, this assumes it's not in our best interest to
               | subsidize this penny per bottle cost for our own health.
               | Plastic trash ends up in our hydrocycle no matter where
               | it is used.
               | 
               | Also, reusable plastic aren't the problem either. A
               | large, centrally fillable 5 gallon container is not
               | likely to be used once and discarded.
               | 
               | Are you really asserting that individual 12-40oz single
               | use bottles of water are the best system we can imagine
               | and what a million people use for daily water?
        
               | xyzzyz wrote:
               | In what way paper, metal, or glass bottles are better
               | than plastic?
        
               | QuercusMax wrote:
               | They can all be recycled in a much more meaningful way
               | than plastic. Paper can biodegrade. Empty metal and glass
               | bottles are easy to use as raw materials.
        
               | RetroTechie wrote:
               | Glass bottles can be re-used as is (like ~20..50
               | roundtrips or so in consumer <-> supermarket context),
               | before recycling even comes into the picture.
        
               | yareal wrote:
               | Paper biodegrades and can potentially be composted. If
               | our ocean started filling with paper, existing biological
               | systems would be able to address it.
               | 
               | Metal and glass are reusable many, many more times than
               | plastic and are sterilizable with heat. Both metal and
               | glass are recyclable or inert in the environment. If a
               | bottle ends up in the ocean it eventually becomes sand
               | again.
               | 
               | None of the above require oil to be produced.
               | 
               | I'm not saying plastic has no upsides, I'm saying other
               | options exist that specifically address the downsides of
               | plastic. With materials we are always making trade offs.
        
               | CatWChainsaw wrote:
               | Aluminum can be almost 100% recycled IIRC and aluminum
               | cans don't weigh a lot. You're getting the same product
               | in better packaging.
        
               | SoftTalker wrote:
               | I would have expected the cost of aluminum cans to be an
               | order of magnitude more than plastic bottles, but from
               | some quick searching it appears it's not even double.
        
               | CatWChainsaw wrote:
               | Is that in their production or their recycling? Even if
               | it is recycling, I'm pretty sure virgin plastic can be
               | remade 6-7 times only.
        
               | giantg2 wrote:
               | Aluminum cans are plastic lined
        
             | tialaramex wrote:
             | I guess that fact sheet needs to be updated with your
             | important revelations about how magically if they just have
             | enough plastic bottles they'll solve cholera.
             | 
             | And to think all this time we'd been worried about the
             | _safe drinking water_ and didn 't realise that without
             | enough plastic bottles it's all a waste of time.
        
           | keybored wrote:
           | Having access to drinkable tap water[1] is an amazing
           | privilege. Some places either don't have access to enough
           | water or don't have the infrastructure.
           | 
           | [1] Bonus if it also tastes good!
        
           | reaperman wrote:
           | I'd imagine a lot of these could be replaced with certain
           | varieties of PLA that are sourced from bio-feedstocks and
           | also relatively biologically degradable. Some PLA isn't very
           | biodegradable, and certainly many would contain problematic
           | plasticizers and other harmful chemicals. Additionally, PLA
           | doesn't have the mechanical stiffness and toughness needed
           | for many applications - but I think if the market for that
           | expanded greatly, research investment would create new
           | varieties of biodegradable PLA which could function as a
           | drop-in replacement for a larger portion of other plastics.
        
           | constantcrying wrote:
           | Plastic is how extremely poor people get things. If you want
           | basic necessities for living plastic is a great option.
           | 
           | If you are extremely poor, what do you eat from? What do you
           | store things in? What do you wear? The answer is obviously
           | plastic.
        
       | TazeTSchnitzel wrote:
       | As I see it, plastic is too cheap to produce (no incentive to
       | recycle it) and overproduced (lots of very low quality plastic
       | goods that have to be frequently replaced; lots of things with
       | unnecessary plastic packaging). A cap on production ought to go
       | some way towards solving both problems.
        
         | michael9423 wrote:
         | Plastics can't be recycled. Even the best quality HDPE resins
         | can only be down-cycled once, and are turned into pens, toys
         | and other low quality plastics stuff you don't want to have
         | close to food.
        
           | 1970-01-01 wrote:
           | I'm afraid the plastic recycling factories haven't gotten
           | this memo.
           | 
           | https://youtu.be/g1WTgGyirDw&t=247
        
             | michael9423 wrote:
             | Plastic resins lose quality in every recycling process
             | (impurities, residues, etc.), so during "recycling", pure
             | new plastics is added.
             | 
             | Even in PET recycling - which is the most effective
             | "recycling" process that exists - PET bottles only contain
             | an average of 17% recycled PET and the rest is brand-new
             | PET. PET bottles are only recycled one or two times.
             | 
             | Most of the "recycled" PET actually goes into other
             | production, like films and textiles, because it's too
             | impure. When plastic gets "recycled", it actually gets
             | down-cycled into products that are no longer recyclable.
             | 
             | So what happens in the end is that the toxic plastics gets
             | concentrated into products where the law does permit these
             | toxins to be present.
             | 
             | Only organic waste and paper allows true recycling.
             | 
             | https://www.oceancare.org/stories_and_news/europas-
             | schweiz-p...
        
               | kjkjadksj wrote:
               | Metals are pretty well recycled, no?
        
               | michael9423 wrote:
               | Yeah I'm talking about the household waste people are
               | told to separate into their bins.
        
               | 1970-01-01 wrote:
               | Molecular plastic recycling allows 100% renewal.
        
           | PaulHoule wrote:
           | There are processes for "chemical recycling of plastics" that
           | either convert polymers back to the monomer (pretty easy for
           | styrene) or to mixed petrochemicals (such as pyrolysis).
           | There are other problems, but the economics are always going
           | to be tough for them because bulk plastic monomers and other
           | petrochemicals (even fuels) usually cost about 50 cents a
           | pound which is a hard price to beat even when you don't
           | consider the cost of gathering and transporting all that
           | plastic.
        
       | michael9423 wrote:
       | In an ideal world, people would use natural and durable
       | materials, mostly wood, glass, steel. Stuff that does not hurt
       | living beings.
       | 
       | The acute problem is not plastic production, although that's an
       | issue. But the industry invented the myth of plastic recycling,
       | and due to wrong incentives, the plastic is shipped to poor
       | countries where it comes into the environment.
       | 
       | The easiest way to deal with plastics is to collect it and burn
       | it.
        
         | warcher wrote:
         | But those more durable goods have a cost in hydrocarbons as
         | well, don't they? Lot of energy input in a hunk of steel. Are
         | we really saving any fossil fuel conversion by swapping over?
         | Has anyone measured?
        
           | yareal wrote:
           | Yes. This analysis has been done. And yes, it depends on your
           | source of energy. But in general energy is getting cleaner,
           | and eventually could be 100% oil free. Most plastics rely on
           | oil, so there's a crossover threshold for most at some point.
        
           | michael9423 wrote:
           | Actually plastics is the most ecological and economic way to
           | package things. Nothing comes close. Because people throw
           | things away all the time, and producing things out of cotton,
           | wood, glass etc. takes way more energy.
           | 
           | The price of something usually reflects the energy needed to
           | produce it. But it does not take account the externalized
           | cost on the society and environment.
           | 
           | On the other hand, there are areas where other materials like
           | cotton are only a bit more expensive but do not have such a
           | negative effect on the environment. In those areas, like
           | textiles, a ban on synthetic material is probably a good
           | thing.
           | 
           | The problem with the environmental impact of plastics is not
           | the production, it's where it ends up. So the question is how
           | to incentivize keeping a closed system where plastics ends up
           | being burned.
           | 
           | Minimizing the use of plastics requires a complete change of
           | how the economy works. It would require a society of
           | citizens, not consumers who throw away things that are still
           | fine and there are certain areas where plastics can not be
           | replaced by other stuff.
           | 
           | Forcing a cap on plastic production means hurting the
           | emerging markets most but also the wealth in western
           | countries.
        
             | warcher wrote:
             | "Where it ends up" is not a problem in the developed world.
             | Everybody complains about it but there are zero problems
             | with our landfills.
             | 
             | All the environmental degradation is in the developing
             | world, where they... do not value the environment in the
             | same way. We didn't either when we were developing. It took
             | a while.
             | 
             | But western advanced economies dispose of their trash well.
             | It's not even close to the top of our list in terms of what
             | we could do for the environment. Seems to capture our
             | collective imagination tremendously though. Maybe because
             | of guilt for consumer culture, maybe because making a
             | meaningful impact would hurt too much.
        
               | michael9423 wrote:
               | There's lots of plastics pollution in the west -
               | including from tires, from people throwing stuff away,
               | and from microplastics in the water.
               | 
               | It's just not visible immediately. But you can actually
               | easily collect hundreds of kilograms of plastics next to
               | a 1-2km long part of a road on the countryside.
        
               | warcher wrote:
               | Tires are a fair point, but kind of a goal post shift
               | isn't it? The problem with tires is not disposed tires,
               | it's _tire wear_.
               | 
               | If there's a plan for remediating tire shavings over the
               | course of tires wearing down in any of these threads I
               | must have missed it. Please correct me?
               | 
               | As far as the rest it's just not true. Landfills in the
               | west are fine. Nothing is perfect but they're not
               | impactful at all ecologically. (Developing world not so.
               | Lack of robust waste management contributes massively in
               | the developing world.)
        
               | michael9423 wrote:
               | I don't want to move any goalposts, I completely agree
               | with your previous posts. In some European countries like
               | Germany and Switzerland, waste collection has been almost
               | perfected, there's not much to complain. But we still
               | have pollution related to plastic production.
               | 
               | It's the west who's shipping the plastic waste to Asia
               | where it ends up destroying the environment and the
               | health of people.
        
               | warcher wrote:
               | I'm specifically saying, in the US, we don't do anything
               | special with our trash. Mostly no recycling of anything
               | but metal. We put it more or less securely in the ground
               | and bury it. That's all.
               | 
               | And that is fine. We would have to fix a whole RAFT of
               | serious serious problems before landfills are anybody's
               | radar. We will never see it our lifetime and I hazard
               | that we may never see the day.
               | 
               | Other countries have tighter land requirements and they
               | might be more forward thinking, but the idea that plastic
               | packaging is impacting the environment is just not
               | supported by data.
               | 
               | As long as you're not throwing it in the river, plastics
               | waste just doesn't matter much.
        
               | FuriouslyAdrift wrote:
               | "...corrugated boxes had a recycling rate of 96.5 percent
               | in 2018."
               | 
               | https://www.epa.gov/facts-and-figures-about-materials-
               | waste-...
        
               | kjkjadksj wrote:
               | That seems unbelievable to me. Unless internal
               | industrial/commercial uses of corrugated really outnumber
               | john smith by that much.
        
               | luplex wrote:
               | The European Commission is working on the new EURO7
               | standard for car emissions, which will include new
               | standards and targets for tire (and brake) wear. I tried
               | to find specifics and they don't seem to be publicly
               | known yet.
               | 
               | But yes, I do expect significant progress on this in the
               | next few years!
        
               | digging wrote:
               | > "Where it ends up" is not a problem in the developed
               | world. Everybody complains about it but there are zero
               | problems with our landfills.
               | 
               | That's a total fiction. There is plastic trash in my yard
               | right now which came from somewhere else. I don't even
               | know where it came from; my entire neighborhood and the
               | park downstream are littered with plastic trash almost
               | year-round.
        
               | White_Wolf wrote:
               | Yes. They dispose of it well... by shipping it in Asia.
               | Look up the whole scandal with plastic shipped to various
               | places in Asia. Crap that even China considers impossible
               | to recycle and refused to allow entry to.
        
           | lm28469 wrote:
           | Carbon is only a tiny part of the problem... plastics are
           | nasty in all kind of ways, both to you and the environment.
           | 
           | Steel and glass won't give you cancer, wool won't destroy
           | your hormonal system, &c.
        
       | jwells89 wrote:
       | Would it be correct to say that the lowest hanging fruit for
       | reducing production of plastic without outsize negative impact
       | would probably be in stymying the vast quantities of synthetic
       | textiles being sold, particularly to richer countries? Those
       | materials dominate fast fashion and are one of the most common
       | types of fabric across a broad range of products ranging from
       | clothing to automobile seat covers to pet beds.
        
         | juujian wrote:
         | The easiest way would be to curtail the supply of oil, which is
         | the raw input of all plastics and there is more of it being
         | extracted than ever before. As long as there is a glut of cheap
         | oil on the market, companies will find a way to make a profit
         | while outcompeting companies that use natural products like
         | cotton. The major ways we use oil all harm the planet in some
         | ways.
        
           | ars wrote:
           | Cotton uses an order of magnitude more oil than "plastic"
           | clothing.
        
             | PaulHoule wrote:
             | Also almost all cotton clothing today is "permanent press"
             | which means the fibers are coated in plastic.
        
               | notnullorvoid wrote:
               | Here's an idea, maybe we stop doing that.
        
               | alanbernstein wrote:
               | Are you claiming that "100% cotton" clothing labels can
               | be inaccurate? Do you have a source for this?
        
               | giantg2 wrote:
               | Wouldn't surprise me.
               | 
               | The premium "not from concentrate" orange juices contain
               | additives not required to be listed on the packaging.
               | 
               | Great value "natural flavor" chocolate syrup contains
               | vanilin (artificial vanilla). So I guess the natural part
               | only applies to the chocolate and not other flavors used.
               | 
               | Many "100% alpaca" socks contain other fibers too
               | (elastics, etc).
               | 
               | The list goes on...
               | 
               | Edit: why disagree? You can even see stuff like "100%
               | cotton with Scotchgard" or the sublimation process used
               | on clothes. Want to share any evidence to the contrary or
               | tell me why it's wrong?
        
               | robocat wrote:
               | > fibers are coated in plastic
               | 
               | No: Cotton is chemically treated.
               | 
               | https://en.wikipedia.org/wiki/Wrinkle-resistant_fabric
               | 
               | Perhaps you are thinking of "However, almost all the
               | wrinkle resistant garments are made with poly/cotton
               | blends fabrics."
        
               | giantg2 wrote:
               | They could be thinking of the stain resistant treatments
               | which are a ureathane (plastic) coating.
        
               | s1artibartfast wrote:
               | I don't think that is true, but am open to learning
               | otherwise.
               | 
               | A quick review of Wikipedia indicates dimethylol ethylene
               | urea (DMEU) is used to crosslink the cellulose polymers
               | itself.
               | 
               | Cotton is already a polymer (albeit a bio-degradable
               | one). DMEU is not a polymer/plastic in its own right.
               | 
               | As far as I was able to see, permanent press is
               | biodegradable.
               | 
               | https://en.wikipedia.org/wiki/Dimethylol_ethylene_urea
        
               | giantg2 wrote:
               | The sublimation process on cotton clothes uses synthetics
               | as the bonding base. It could be a polyester resin or a
               | vinyl. The shirt itself will still be listed as 100%
               | cotton.
        
               | s1artibartfast wrote:
               | DMEU is a synthectic bonding resin. but im not sure that
               | by itself is in any way a problem. Are you talking about
               | pattens that are sublimated onto cotton shirts?
        
               | giantg2 wrote:
               | Yes
        
         | yareal wrote:
         | Packaging produces about 140 million tons annually. Textiles
         | produce about 40 million tons. Construction produces about 75
         | million tons, and transportation about 60 million tons.
         | 
         | Textiles are non negligible, but packaging is almost certainly
         | a better target for inexpensive impact. Tons of stuff doesn't
         | need plastic wrapping.
        
           | PaulHoule wrote:
           | Yeah, "frustration free packaging" could save the Earth.
           | Often it is such a terrible experience cutting into plastic
           | clamshells.
        
           | bryanlarsen wrote:
           | Only a very small percentage of packaging ends up as micro or
           | nano plastic in the water supply. A much larger percentage of
           | textiles end up as micro or nano plastic in the water supply
           | since they're generated by washing clothes.
           | 
           | If that's what you're concerned about, a focus on textiles is
           | warranted.
        
         | travisb wrote:
         | There is no low hanging fruit when it comes to reducing plastic
         | production or consumption. Plastic is just too awesome -- which
         | is why we use it instead of whatever we used before plastics.
         | 
         | I'm not aware of any major use of plastic where going backwards
         | in time is on-net more environmentally friendly. Most reports
         | discussing plastic replacements make unreasonable reuse and
         | durability assumptions. Often they ignore or downplay
         | consequences of switching like increased transportation
         | pollution or pollution from assumed recycling.
        
           | digging wrote:
           | > I'm not aware of any major use of plastic where going
           | backwards in time is on-net more environmentally friendly.
           | 
           | Literally all of them. They reduce plastic pollution to 0.
           | CO2 pollution is not the driving factor behind plastic
           | reduction.
        
             | makeitdouble wrote:
             | Only focusing on plastic bring us to a Goodhart's law
             | situation where we get worse overall effect in exchange of
             | a hollow "0 plastic" marketing claim.
             | 
             | That's one situation where I think "doing something" for
             | the sake of it is the worse option.
        
           | White_Wolf wrote:
           | Maybe you're too young to remember the days of paper bags,
           | hemp shopping bags, shoes and shirts. "more environmentally
           | friendly"? Most alternatives are more environmentally
           | friendly in a long run than plastic.
        
             | makeitdouble wrote:
             | Production of paper comes with many asterisks regarding
             | environment friendliness [0]. It sure can be done, but it's
             | not simple and the majority of the industry isn't "clean".
             | 
             | Hemp is only used a low scale so I don't think we have
             | enough data on what would happen if tomorrow we decided to
             | replace all the plastic bags with hemp bags and how we'd
             | produce that. It's not guaranteed to be better until then.
             | 
             | [0] https://en.wikipedia.org/wiki/Environmental_effects_of_
             | paper
        
               | kjkjadksj wrote:
               | A big advantage of paper is that when people inevitably
               | litter, it doesn't break down into microplastics.
        
           | mitthrowaway2 wrote:
           | > I'm not aware of any major use of plastic where going
           | backwards in time is on-net more environmentally friendly.
           | 
           | My guess would be fishing nets. These are the main source of
           | plastic pollution in the ocean.
        
             | travisb wrote:
             | Even doesn't pass the smell test, especially if one
             | considers the data for cotton shopping bags versus plastic.
             | 
             | Per unit length of netting with the equivalent strength,
             | cotton/hemp netting will weigh more, require more frequent
             | replacement, require horrible preservatives which will
             | leach into the marine environment, require more fossil
             | fuels to till and fertilize the cotton, consume more
             | freshwater in production, result in more top soil loss due
             | to mono-cropping, need more pesticides, etc.
             | 
             | Direct plastic pollution in the ocean would be reduced yes,
             | but at the cost of higher pollution and environmental
             | degradation elsewhere.
        
       | dzink wrote:
       | A HUGE % of plastic production worldwide is from bottlers of Coca
       | Cola company drinks and their competitors. Why not address and
       | deal with the elephant in the room.
        
         | dlachausse wrote:
         | What solution are you advocating for? Glass bottles? Aluminum
         | cans? Banning soda entirely?
        
           | klysm wrote:
           | Aluminum cans
        
             | giantg2 wrote:
             | They're plastic lined. So how is that better?
        
               | yesfitz wrote:
               | They have less plastic, which is better than more plastic
               | when it comes to disposable items.
        
               | mauvehaus wrote:
               | On a basis of grams of plastic to grams of product, I
               | don't see how anyone can claim that they aren't better
               | than plastic bottles.
               | 
               | If that's an invalid basis for comparison between plastic
               | bottles and aluminum cans, I'm probably not the only
               | person who'd like to know more.
        
               | giantg2 wrote:
               | Ok, but why not use glass instead? That's even lower.
               | With cans you'll still end up with microplastics and
               | chemicals leaching into the soda. You still have the
               | potential for microplastics in the environment even if
               | it's 50% since one side is coated (surface area might be
               | a large factor compared to overall mass if most particles
               | are shed from the top layers. I don't know).
        
               | mauvehaus wrote:
               | Yeah, I'm not really up to speed on how plastic turns
               | into microplastic and how that might work with coated
               | cans either, but it's a fair question to ask.
               | 
               | I think one argument against glass is the transportation
               | cost (dollars or carbon, take your pick) on a grams of
               | packaging to grams of product basis. Plus the added
               | volume of both the glass and the packaging required to
               | keep breakage manageable, which is volume that isn't
               | being devoted to product either. A case of wine is 6^H
               | (edit: can't math) 9 liters of wine, whereas a 24 pack of
               | beer in 350ml cans is 8.5 liters is less overall volume
               | and mass.
               | 
               | It seems insane to me that you can get a glass bottle of
               | wine from another hemisphere for a single-digit or low
               | double digit number of dollars. Just melting the sand to
               | make the glass seems like it should cost a couple bucks.
        
               | giantg2 wrote:
               | It's possible they're reusing the bottles instead of
               | melting them down. That's what was done a long time ago,
               | and isn't an option with plastic or metal cans.
               | 
               | I can see how shipping could be more especially if it
               | needs a cardboard case. Perhaps shipping would be
               | negligible if we had more localized production and less
               | long distance shipping. Rail shipping would likely have a
               | negligible shipping cost difference. Even something like
               | increasing the use of concentrated syrups and fresh made
               | sodas could be a benefit for packing reduction and
               | shipping costs.
        
               | klysm wrote:
               | Aluminum can actually be recycled. The plastic lining is
               | problematic but not strictly required.
        
           | giantg2 wrote:
           | Aluminum cans are plastic lined.
        
           | GeoAtreides wrote:
           | > Banning soda entirely
           | 
           | I mean... is it a climate emergency or not? Do we really need
           | to haul tons of sugary water up and down the highway? Not to
           | mention the plastic.
           | 
           | There is alternative btw: soda stream and syrups. Apparently
           | a 440ml bottle of syrup makes up to 9 litres of pepsi.
        
           | lupusreal wrote:
           | > _Banning soda entirely?_
           | 
           | You'd be doing literally everybody (except soda company
           | shareholders) a favor.
        
           | dzink wrote:
           | The solution has been figured out by the company decades ago.
           | The drinks are concentrated a massively and only mixed and
           | the bottler, which is also the biggest plastic polluter on
           | the planet. Have reusable containers people can buy from the
           | company if they want to and set up dispensing machines at any
           | location. Even better - rent those containers to the customer
           | when they buy the drink and charge if they don't return the
           | container. But the logistics of all of that worldwide are
           | more expensive than making ferrying and polluting with
           | plastic. Move the bottling to the edge - to the consumer.
        
       | constantcrying wrote:
       | Plastics are one of the greatest, most versatile materials
       | available. If you want to cap plastic production, every single
       | industry and your daily life will be drastically affected.
       | 
       | There are exactly zero incentives for any nation to drastically
       | limit plastic production. As with CO2 these policies will be
       | implemented by many Western nations, while the many, densely
       | populated countries, relying on cheap goods will take no serious
       | actions. Plastic is just too useful.
        
       | thriftwy wrote:
       | I've heard that 80% of plastic pollutions in the oceans are from
       | African big rivers being used as dumpsters and then flushing
       | their yield to the sea.
       | 
       | Why TF are we supposed to limit plastic use in developed
       | countries, often located deep inland, where our plastic has many
       | orders of magnitude smaller chance of polluting the oceans, etc?
        
         | robocat wrote:
         | > African
         | 
         | You have heard wrong. Then again:
         | 
         | "More than 1000 rivers account for 80% of global riverine
         | plastic emissions into the ocean"
         | https://www.science.org/doi/10.1126/sciadv.aaz5803 Has some
         | nice maps of waste versus country:
         | https://www.science.org/doi/10.1126/sciadv.aaz5803#F4
         | 
         | "Around 90% of all river-borne plastic that ends up in the
         | ocean comes from just 10 rivers"
         | https://www.weforum.org/agenda/2018/06/90-of-plastic-polluti...
         | 
         | Not necessarily contradictory, but an indication of
         | disagreement.
        
       | pinkmuffinere wrote:
       | The modeling uses a certain set of assumptions, and has a certain
       | goal. As far as I can tell, neither were discussed in the
       | article, making it difficult for me to _really_ conclude whether
       | I feel the cap on production is justified. I realize my option
       | doesnt matter, and the research papers probably do discuss the
       | assumptions of the model. I don't see why anyone should read this
       | article though, unless you want another opinion piece
        
       | chris_va wrote:
       | It might be simpler to mandate accounting and (progressively) tax
       | production to pay for remediation to force the market away from
       | polluting.
       | 
       | And maybe it would encourage more out of the box solutions, like
       | this one: https://arstechnica.com/science/2024/04/researchers-
       | make-a-p...
        
       | boring-alterego wrote:
       | Sometimes you come to the comments for good ideas, sometimes you
       | come for the show.
        
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