candle_lighter,
@candle_lighter@lemmy.ml avatar

The answer is trees take years to grow and aren’t suitable in places like rooftops

LoamImprovement,

Also, trees that get too big have roots that damage infrastructure and have to be cut down. I’m not saying I like the dirty fishtank look more, but I can see how this might be easier to maintain in urban spaces.

uis,
@uis@lemmy.world avatar

It is fucking street

candle_lighter,
@candle_lighter@lemmy.ml avatar

And you can’t grow trees on concrete. This one is particular is just the first one of it’s kind and it’s mostly in a spot to show off the technology. I’m not aware of any other ones that have been built yet.

anarchy79,
@anarchy79@lemmy.world avatar

That’s why there are no trees anywhere in cities, and roofs never have plants anywhere.

NabeGewell,
@NabeGewell@lemmy.world avatar

Imagine replacing trees with those, and some drunk breaking the glass like once a week lmao

rosymind,

That was my thought as well. I’ve seen what some homeless people are capable of. (Not trying to dump on unhoused people, here, but there are some seriously ill people left out on the streets). This glass needs to be nearly unbreakable for it to work

anarchy79,
@anarchy79@lemmy.world avatar

Not to mention what ordinary pub goers can do!

uis,
@uis@lemmy.world avatar

They are too good

CoffeeJunkie,

I’d have to see how it is better than, worse than trees on a case-by-case basis. But generally speaking, I can think of a few reasons this is better:

Trees are messy. They take a long time to grow, they take constant maintenance while growing, then they eventually die. Tree roots fuck up pipes & concrete. If this installation is equivalent to 1 or more trees, it is doing the work in a fraction of the space.

CiderApplenTea,

At the same time, though, green space has shown to improve mental health. I would be curious (and very sceptically biased) if algae tanks have the same impact.

driving_crooner,
@driving_crooner@lemmy.eco.br avatar

Trees also provide shadows and space for birds and other animals.

iamnotdave,

Because they pick trees that have gender. They plant male trees, see dogwoods, the flower but not bare fruit. So you get allergies because of tree cum. And as far as I know plankton cum doesn’t come with side effects.

TipRing,

While it’s good to be skeptical, algae tanks like this are actually a good idea for the use-cases for which they are designed. Places where trees would be difficult and expensive to grow. The tanks more efficiently capture carbon, require less maintenance, produce fertilizer as a byproduct and the solar panels on the tank produce enough extra power for there to be a USB charger on the bench. The goal isn’t to replace trees with tanks but to use them where it makes sense to do so.

ridethisbike,

This was my thought as well. They should be used in addition to, not as a replacement for, trees, bushes, and grass.

It does make me wonder, though, whether or not we could use these to help capture more carbon than we’re creating.

Sanyanov,

That would require a gigantic scale of operations, and trees are just waaaay more economical.

Think of entire oceans full of algae not being enough to stop what’s currently going on with ecological situation.

anarchy79,
@anarchy79@lemmy.world avatar

Too expensive to grow trees? Thank god capitalism is saving us so much money, we are all so rich now that we can simply buy oxygen tanks instead of having to deal with those money sucking trees and plants.

smiling_big_baby_boy,

We are in a parasitic relationship with capitalism. Capitalism constantly extracts from life and the environment. When life begin to limit captialism, capitalism will go to great ends to remove life. Capitalism is not sustainable, nor is it naturally occurring. Abolish this evil system.

WetBeardHairs,

How about we only have some capitalism. Let’s only allow less slavery and habitat destruction in exchange for us all to be subservient to billionaires.

2deck,
@2deck@lemmy.world avatar

Okay, you get 5 capitalism. But you have to share.

pelerinli,

What are you, a communist?

gerbler,

I think a lot of these are just cool experiments and projects grad students do for the sake of doing them. Then some hack writes an op ed about how we don’t need to worry about deforestation because we can plop algae tanks down instead.

WetBeardHairs,

Oh thank god. We don’t have to worry about deforestation anymore? Phew. Thanks, tank of algae.

anarchy79, (edited )
@anarchy79@lemmy.world avatar

Sadly, dealgaeation is quickly becoming a catastrophic problem. However, we are confident we can soon genetically modify human lungs to partially breathe the sulphur clouds that will engulf our planet!

Baphomet_The_Blasphemer,

I thought it was more of an experiment that, if proven successful, could eventually aid in the exploration of space since we would need to engineer ways of creating oxygen for prolonged travel.

Blademax,

It’s coarse, and rough, and irritating, and it gets everywher…wait…that’s sands… Nevermind…

CCF_100,

SciShow made a video about these: youtu.be/QUGJPZ1a308

DrDominate,
@DrDominate@lemmy.world avatar

That is super cool and my immediate assumptions were dispelled. I would love to see these in my city.

MeatsOfRage,

Thanks for posting this! I was curious about this and had to scroll through so many miserable comments in this thread to find this.

eltimablo,

For real, the people on this site deserve the hell they create for each other. If Kbin had a functioning account delete button, I'd have been gone months ago.

leggettc18,

To echo what some other people have said, these algae tanks absolutely should not be used instead of trees. If I see a tree get chopped down and replaced with one of these, I’ll be sad and angry. However, these can go in places where trees can’t go, like rooftops. And you don’t have to either wait for a tree to grow for a decade or take a tree from somewhere else to install one. It also serves as both a seating area and can mount a solar panel on top. These and trees both have their place and should both continue to be used.

millie,

Used for what exactly? To have a dirty fish tank?

JudahBenHur,

please god tell me you’re trolling

millie, (edited )

Nah, I just think it’s really silly.

If growing algae is effective at anything, why do it in a small sealed tank in the middle of a street? Most of the oxygen we breathe is produced in the ocean, regardless of where we personally are. Why would we need to stand vaguely near a rather sealed looking algae tank? If simply growing algae is effective for oxygen replenishment and carbon capture, surely we’d be better off simply growing massive ponds of it away from city centers? Like, out in the open?

It seems like green-washing bullshit to me.

Trees provide a lot more than oxygen. They provide shade, habitation for animals, and psychological well-being for humans. Dirty fish tanks don’t provide any of those things.

People are seriously in this thread complaining about roots like they’re a reason to replace trees with algae boxes. Getting some big plant-based NFT cryptobro carbon-credit nonsense vibes.

DragonTypeWyvern,

It’s actually hilariously ignorant that you people are pretending this is a cost effective idea for carbon capture. It will, in fact, just make a bunch of dirty fishtanks that are abandoned or thrown away almost immediately.

JudahBenHur,

thanks for calling me you people dude!

who said it was cost effective? I only said I cant believe this person didnt get the idea.

its not “in fact” its “you believe” . youre probably right, just saying

leggettc18,

For the conversion of Carbon Dioxide into Oxygen? That was the main point of these, the algae does that and is actually even more efficient at it than a tree. Trees do have other benefits hence why they shouldn’t be replaced, but these should go in places where trees can’t.

millie,

That is adorable.

frezik,

Putting a ton of water on the roof isn’t a good idea, unless it was already rated for a swimming pool.

They don’t need to be inside cities at all.

Kwakigra,

Cyberpunk city with no plantlife other than these algae vats all over the place. Big towers of murky green liquid.

ThatFembyWho,

and they are fed by nutrients extracted from dead humans, because there’s no room to bury anymore and the air is too polluted for cremations

Anticorp,

I’m not sure if these scientists understand a lot of the reasons why trees are nice.

naevaTheRat,

Why do you assume it’s not the reporting that’s stupid?

anarchy79,
@anarchy79@lemmy.world avatar

Because it is perfectly in line with our society’s continuous descent into a post apocalyptic wasteland?

naevaTheRat,

That’s capitalists not scientists. Scientists make bridges possible, capitalists charge you to cross them.

LSNLDN,

All these people being like “why don’t we just use trees” as if the capitalists could profit from them like this. And not to say this is cost efficient, of course planting a tree would be better for everyone, but whoever installs these things will have a contract guaranteeing them money that taxpayers will be told is being put toward green initiatives and so will be eager to part with it I guess

EatYouWell,

Do you think that trees don’t require money to upkeep?

Plus, they fuck up any infrastructure they’re around, so that money is going to contractors anyway.

eltimablo,

Shhhh, thinking about things past the barest surface level scares the tankies.

EmperorHenry,
@EmperorHenry@discuss.tchncs.de avatar

Well Trees don’t make as much money for rich people who own everything and Trees make hot days more comfortable for homeless people

Octopus1348, (edited )
@Octopus1348@lemy.lol avatar

We just have to remove the roof from that thing so it won’t be shadowy, and make a wall in the bottom so it can’t be used to lay down.

Honytawk, (edited )

I think it has more to do with the fact trees require more maintenance, like raking up leaves and fruit, and having to saw off branches.

Also those roots can break pavement and pipes.

EmperorHenry,
@EmperorHenry@discuss.tchncs.de avatar

Well of course, you can’t give working class people any money for working, you can only give them a slave-wage. That’s why all manufacturing was outsourced to very underdeveloped countries when NAFTA was first put into place.

You can easily get away with exploiting people who have no other choice but to work for a dollar per year, but it’s much more difficult to do that to someone’s neighbor in their community.

Witchhatswamp,

You really think those massive, experimental water tanks won’t require more maintenance, because you have to trim trees once ever few years? Or because their roots might grow too much?

bi_tux,
@bi_tux@lemmy.world avatar

For now, no. In the near future, probably

zalgotext,

Ok, I like trees as much as the next person, and much prefer them over these algae tanks.

But what about these “massive experimental water tanks” do you think will damage the infrastructure beneath and around it like tree roots do?

Madison420,

Algea is a much much better oxygenator with lower maintainence, people don’t seem to notice how fast cities can kill trees.

EmperorHenry,
@EmperorHenry@discuss.tchncs.de avatar

even so, I bet the billionaires were ecstatic about how it doesn’t give any shade on hot days

Natanael,

My first thought is you can embedd this inside buildings rather trivially

Cato_the_Posadist,

Walls made out of these would be cool

evranch,

And the oceans are incredibly vast, so they provide most of the world’s oxygen! Obviously it’s hard to get a precise number but 50-70% is the accepted range.

There are many reasons to plant trees in the city but local oxygen supply isn’t one of them. Mostly trees look nice, and make people feel better by their presence. They also have a significant cooling effect, something a steamy tank full of warm algae definitely won’t help with on a summer day.

Madison420,

Local oxygenation is important, conversion at the source pretty much always is.

Moreover it doesn’t at all imply in lue of trees and importantly oxygenate at the same rate day and night since they’re independently lit ideally 24/7/365.

Perhapsjustsniffit,

We keep killing the ocean then asking why we need those stupid plants.

frezik,

You don’t need to put algae in cities. They can be basically anywhere to absorb CO2.

Trees in cities tend to be carefully chosen for the environment. Are we in a climate where we need to put salt on the road in the winter? Choose trees that can tolerate some salt in the ground.

optissima,

Maybe stop putting salt down in winter??? Who does that still they need to stop.

brik100,

As much as it sucks, until we reduce the need for cars, northern rural areas are going to need to use salt for roads to be usable. Of course, if global warming gets worse it won’t be an issue

sukhmel,

Besides the already stated fact that global warming will only make winters worse, there are better ways like cleaning the snow (ok, that’s radical) or using abrasives like sand or gravel.

eltimablo, (edited )

Clearing the snow doesn't fix the ice that snowplows leave behind and gravel/sand is a straight placebo. That's why the roads get salted/brined.

bufalo1973,
@bufalo1973@lemmy.ml avatar

“Global warming” doesn’t mean warmer winters. It means extreme summers and winters and nothing in between, with a global temperature raising.

Madison420, (edited )

My major metropolitan City kills New trees literally every year.

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