Submitted by chrisdh79 t3_yd3b4e in Futurology
Jsimpson059 t1_itrbdqb wrote
Reply to comment by WartimeHotTot in Recycling plastic is practically impossible — and the problem is getting worse by chrisdh79
If only there was a reusable material made from an abundant natural resource like sand...
3a8rvuaPZ9t t1_itrj9o3 wrote
Actually sand used to make glass is quite specific and finite.
FingerTheCat t1_itrt3wh wrote
But recyclable and doesn't poison the planet. (Yes yes the energy required still does)
3a8rvuaPZ9t t1_itrv5n1 wrote
Yes and far easier to reuse as well.
My point was really about sand though. It’s not common knowledge that the sand we use for things like glass and concrete are a very specific type of sand and a limited resource. You can’t just go into the Sahara and get all you need for generations to come.
FingerTheCat t1_itrzmb4 wrote
Agreed, also I guess I didn't think about the habitat destruction for said resource
Cmdr_Toucon t1_itrg8k1 wrote
That I can't get anyone to take for recycling
BestCatEva t1_itryjoz wrote
Yeah, our town stopped taking glass. You can drive it to the center if you want but prob not many do.
DickPoundMyFriend t1_itrkdsb wrote
And if corporations cared about anything other rhan profits, they wouldn't have switched to plastic in the first place.
ingen-eer t1_itrbz2o wrote
Or aluminum! Why can’t those 16 and 20 oz bottles just be cans?
usethemoose t1_itrlx2q wrote
You would be improving material circularity (in theory) while drastically increasing carbon emissions. Aluminum extraction and processing is energy intensive and dirty. Glass is energy intensive to produce, recovered materials are typically down-cycled due to color contamination, it’s heavy and inefficient to move and fragile, usually requiring plastic to prevent breakage.
Plastic isn’t only used because it’s cheap, it’s also very energy efficient to produce, lightweight for distribution (fewer transit emissions) and protects products from damage. Plastic waste is a significant issue that needs to be solved, but I always caution against promoting bans that don’t consider all the environmental advantages it currently provides.
KerkiForza t1_its2e4y wrote
Those "aluminum" cans still have an internal plastic liner.
ccooffee t1_itrzq00 wrote
Glass is so much heavier. Burns more fuel to transport them around, which is also an environmental problem.
saberline152 t1_ittqp91 wrote
well depends on the fuel eh
cornerblockakl t1_ittrtax wrote
No. The kind of fuel doesn’t matter. It requires exactly the same amount of energy (fuel) to move 1 gram 1 meter (all other variables remain the same) regardless of the energy source. Jesus Christ, stop with the idiocy.
GubmintTroll t1_ittxyhx wrote
I think the comment of “depends on the fuel” is in reference to the comment of burning more fuel being an “environmental problem” and could be interpreted as meaning that the kind of fuel dictates the severity of the environmental problem. Not quite idiocy from where I stand.
whooyeah t1_itucuwk wrote
But if the fuel is burning in the sun then it’s Ok
Automatic-Leave-7258 t1_itu9hov wrote
That’s… not how energy works at all.
Moving 1 gram 1 meter can cost energy if you move the 1 gram to a higher potential, be energy neutral if the two endpoints are at the same potential, or even generate energy if you move the 1 gram to a lower potential.
The method you use to get it there can be more or less efficient, and it is almost always energy negative in practice due to friction… but what matters isn’t the mass being moved, it’s the integral of the force applied with respect to the distance traveled. That’s the definition of “work.”
The cool thing is that by this definition, you spend energy to accelerate a mass in the beginning, but as you slow the mass down to approach its destination, you can recover almost all of that energy as you apply a negative force to decelerate.
In fact, this is what the alternator in your car does. As you brake, the alternator recaptures energy used to accelerate the wheels, and it stores that energy in the battery.
cornerblockakl t1_itv7t2w wrote
That’s why I said “all other variable being equal.” Holy Christ.
Automatic-Leave-7258 t1_itvqhm5 wrote
I’m just saying moving a mass on a flat plane doesn’t use energy unless you really care about friction.
cornerblockakl t1_itw5ph1 wrote
Just. Stop. Talking.
Nomore_crazy t1_ittvibd wrote
Documentary : Sand wars
Some sand is used in concrete and has from the documentary at least you will Learn about how Dubai and Other rich countries are destroying the world.
tom-8-to t1_itti06p wrote
Silicosis is bad for you and comes from sand
T1res1as t1_itxn3kq wrote
Go home Anakin, you’re drunk
SimonReach t1_itrtix0 wrote
I don’t want glass to come back to be the norm, there’s enough shattered glass bottles on the floor as it is
bubba4114 t1_ittjquk wrote
Just to clarify what the other guy said, not all sand can be made into glass. Desert sand is unusable because there isn’t enough silica in it.
Emperor_Zar t1_itubhm2 wrote
Or maybe hemp in which biodegradable plastics can be made?
Viewing a single comment thread. View all comments