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

So I think the general idea is that you can convert more CO² to carbon in the form of sugars and O² molecules per square foot with algae than with trees. Trees would totally do the same thing if we ripped up all the concrete and buildings to replant a forest, but that process would take decades.

This can be added into existing infrastructure and helps I guess. Kinda a neat concept.

Sheeple,
@Sheeple@lemmy.world avatar

deleted_by_author

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  • Holzkohlen,

    Except that trees look good and give shade.

    morrowind,
    @morrowind@lemmy.ml avatar

    a translucent roof filled with algae would be pretty cool

    subtext, (edited )

    Pedantic, but for carbon dioxide or oxygen (or most other molecules you’ll write out) it’s a subscript for the number. Wikipedia

    So it would be CO2~ or H2O or O~2~~

    Seems my markdown is rusty, however you make subscripts I guess for CO<sub>2</sub>

    Ottomateeverything,

    But why not just like… Do that somewhere where the mass actually makes a difference? You’d be better off dumping acres full of this shit instead of regrowing a forest. Doing it in individual tanks, sparsely within a city, is both an inefficient use of resources and fucking ugly.

    Trees only purpose in a city is not to clean out CO2. It’s not even their primary purpose in a city. If it was, they’d be selecting specific species etc.

    pozbo,
    @pozbo@lemmy.world avatar

    I mean ideally we would flood the ocean with Fe³ and spark a mass breed of this shit where it belongs. The biomass could work it’s way up the food chain as an added benefit too.

    But we won’t 🙃

    FierySpectre,

    If history taught us anything it is that purposely messing with an ecosystem seldom has the effect we want to achieve.

    pozbo,
    @pozbo@lemmy.world avatar

    Better to leave it with just the environmental changes we made without intent right?

    Ottomateeverything,

    I mean, sort of?

    We created a big problem by injecting a lot of shit where it shouldn’t be. If we stop that, some pieces will bounce back.

    Injecting more shit in another place means we have one big problem, that we haven’t stopped, and now a new problem that we don’t know the repurcussions of or how to reverse.

    So uh, yeah, I’ll stick with the one beast we know over one we know and also another we don’t.

    pozbo,
    @pozbo@lemmy.world avatar

    It’s okay to say you don’t understand marine chemistry, there is no shame in it.

    The whole “seed the oceans with ferrous oxide” idea isn’t mine. In fact many better minds came up with it. You can check it out if you want, no pressure.

    mypasswordistaco,
    @mypasswordistaco@iusearchlinux.fyi avatar

    You are being very pretentious.

    pozbo,
    @pozbo@lemmy.world avatar

    Yup.

    mypasswordistaco,
    @mypasswordistaco@iusearchlinux.fyi avatar

    It’s funny, because your own ignorance is showing. There’s plenty of research to suggest that iron fertilization is controversial, which directly contradicts your (very condescending) assertion.

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

    Again, not my assertion but go on about my ignorance. Of course not all scientific papers agree. That’s why we have field testing and peer review.

    I aquaculture cnidaria and get paid for algae abatement so maybe you could trust me a bit.

    mypasswordistaco,
    @mypasswordistaco@iusearchlinux.fyi avatar

    My point is that you’re being dismissive of very reasonable concerns that are supported by published scientific literature. Further, rather than address those concerns directly, you chose to deflect with condescension and belittlement.

    So no, I’m not going to trust you, because the only thing that you’ve done to prove your point is be an ass.

    pozbo,
    @pozbo@lemmy.world avatar

    K

    FierySpectre,

    It is much easier to destroy something than it is to repair it. This applies to the original changes we made through exploitation, pollution, etc. But also to the radical change you propose, it is much easier for it to have a destructive effect compared to having a positive effect.

    pozbo,
    @pozbo@lemmy.world avatar

    I agree on the first part of what you said.

    But we aren’t fixing the problem either way so what’s really at stake?

    Kase,

    Alright I’m just going off of what I learned in environmental science class this summer, not an expert here. There was something about algae blooms (usually caused by fertilizer runoff) being a really bad thing for local ecosystems. I’m not sure if this is relevant to what you’re saying, just throwing it out there lol

    Touching_Grass,

    I have this fantasy where we humanity has a whole biotechnology skill tree that we never unlocked but there’s like a Renaissance waiting to happen that will one day uncover all these cool new branch’s

    doctorn,
    @doctorn@r.nf avatar

    If they didn’t just breath oxygen and give off CO² at night, maybe, but trees actually undo much of their oxygen creation overnight… 😅

    pozbo,
    @pozbo@lemmy.world avatar

    Much, not all.

    doctorn,
    @doctorn@r.nf avatar

    Yep, as opposed to algea’s none.

    pozbo,
    @pozbo@lemmy.world avatar
    doctorn,
    @doctorn@r.nf avatar

    I might have eyed over some parts as it’s lengthy and I have little time rn, but that seems to mostly agree with what I said?

    GrammatonCleric,
    @GrammatonCleric@lemmy.world avatar

    But they provide little shade 😒

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

    Jump in and you won’t need shade to cool down.

    GrammatonCleric,
    @GrammatonCleric@lemmy.world avatar

    Like being slimed on Nickolodeon

    Kase,

    On this note, think of all the benefits if we filled all our public swimming pools with algae!! I’m sure nobody would notice the difference

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

    Honestly unless it was a red cyanobacteria bloom I doubt anyone would notice. I for one don’t drink pool water so I wouldn’t be very affected 🤷

    knorke3,

    also algae farms can be arbitrarily vertical and can be built underground if you supply them with CO2 - trees are mostly limited to the surface.

    solivine,
    @solivine@sopuli.xyz avatar

    Also tree roots will tear stuff up

    0ops,

    That just means you can catch some sick air

    can,

    That adds character.

    yeather,

    And lawsuits when people trip over uneven concrete caused by roots.

    steal_your_face,
    @steal_your_face@lemmy.ml avatar

    Can’t wait to sue the trees

    TheBat,
    @TheBat@lemmy.world avatar
    shootwhatsmyname,
    @shootwhatsmyname@lemm.ee avatar
    Kase,

    Sometimes wheelchair user here. Character can kiss my ass <3

    (I’m not expressing anger at you, just at my city’s mangled sidewalks)

    ryannathans,

    If they have surface roots, plant tap root trees instead

    pozbo,
    @pozbo@lemmy.world avatar

    Ain’t nobody got time for that.

    zomtecos,
    @zomtecos@feddit.de avatar

    Shade, cooler Air in summer, better protection against rain… 🤷‍♂️ Trees are 😎

    MrFunnyMoustache, (edited )

    Exactly man… fewer floods, more biodiversity, they look nice which is better for mental health and reducing hypertension (the number one risk factor correlated with deaths), some of them give you fruits or nuts to eat… Trees are awesome.

    I think any city should strive to have at least as many trees as the number of people living in it.

    ForestOrca,
    @ForestOrca@kbin.social avatar

    I saw something like this, which piped exhaust from a generator thru a container of water and algae, with the idea to capture the co2, etc produced. Sure why not. I'll still prefer trees.

    toast,

    I’ll still prefer trees

    God, yes. Trees provide shade, transpirative cooling, homes for animals (birds, mammals, insects), and a particular natural beauty that tanks of algae do not.

    lowleveldata,

    Trees are too useful so we keep cutting them down

    grue,

    Nobody uses an urban tree that gets cut down. It just gets hauled off to the landfill.

    It’s absolutely ludicrous that when the gigantic oak in my yard fell the arborist didn’t know of anybody who could cut it up into lumber for me – even in a city with so many urban trees that it’s called the “city in a forest” – but allegedly the economics of it don’t work out, or something. I dunno if that’s true, but it pisses me off enough that I’m half-tempted to go buy a damn portable sawmill and start a business doing it myself.

    FierySpectre,

    Say that to the table in my living room. (They removed a lot of old exotic trees that were lining some road some years back, those trees got sold to people making nice tables).

    Selling the trees was only a side effect, and these weren’t your run of the mill trees either. But exceptions exist

    brown567,

    Trees have trouble in urban areas with a lot of traffic

    nilclass,

    Traffic has trouble in urban areas with a lot of trees

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

    Trees can’t survive if they can only get water from a 6’‘x6’’ cookie cutter hole in concrete.

    gullible,

    Trees and algae have different utilities. Trees are beautiful, reduce temperature, offer shade, and produce a modest amount of oxygen. Algae tanks produce vastly more oxygen by volume and cause you to question whether it’s really enough to continue meandering through life in this stone and metal postmodern hellscape and maybe it’s okay to finally indulge in a vacation near open fields and untamed wilderness. The local camping spots might be available in a few weeks if my sanity can hold out. One doesn’t completely substitute the other.

    someguy3,

    Roots fuck things up.

    Kbin_space_program, (edited )

    Because Trees are for rich people only.

    Poor people don't get natural shade. They just get to see "luxury" apartment towers with tenant only "public parks from a distance.
    /s

    fl42v,

    They grow upside down

    redblacktree-132936558

    kibiz0r,

    Unless you invert it

    grue,

    Street trees aren’t car-supremacist enough.

    Let me explain what I mean by that: when a driver fucks up and his car careens off the street and hits a tree, the tree stops the car very abruptly. That’s great for, say, an innocent pedestrian who was saved by hiding behind the tree, but can apply rather serious consequences to the negligent driver. Car-brained traffic engineers see it as their mission to protect drivers from any and all consequences, so they insist on ripping out all the trees to create a gigantic “clear zone” so that the car is free to careen wherever it wants without hitting anything solid. Squishy things within the clear zone, such as pedestrians, don’t enter into consideration.

    In other words, one important “advantage” of these “liquid trees” over real trees is that they can be mounted on breakaway stands, so that they yield (and therefore provide no protection to any hapless bastard who might’ve been sitting on the bench at the time) when a car hits them.

    Source: I’m a former traffic engineer. But don’t take it from me; watch this confession from a much more experienced and credible engineer explaining it in even more stark terms.

    Honytawk,

    Is that why there are so many metal poles next to roads?

    Sounds to me like that is a US-centric issue.

    constantokra,

    Local ordinances specify minimum space requirements for trees, which may mean that they’re not allowed to be put in certain places. Also, they can cause pedestrian safety issues, as well as Ada compliance problems in confined spaces. This is an easy way to get something green in a place where you would otherwise not see a tree because of a lot of beaurocratic bullshit.

    Obviously, you can argue that all that needs to be changed. And you’d be right. And in many places it’s moving that way. But then you also wouldn’t get anything done for quite some time. This is an option where there might be no other viable options at the moment.

    0ops,

    From the pictures, the tank’s only a couple meters from a tree itself. “supplement” would be a better word than “alternative” in the headline

    ICastFist,
    @ICastFist@programming.dev avatar

    All safely contained in an airtight tank so that pesky O2 doesn’t escape back into the atmosphere

    TAG,

    Trees are great on sidewalks, but it is much easier to control the weight of an algae tank if you want to make a green roof for a building.

    Froyn,

    People tend to forget that trees have roots.
    Roots cause problems with infrastructure.
    Hence why when a problem arises you try to "get to the root of it".

    Here's an example of what I mean:
    https://hort.ifas.ufl.edu/woody/images/urbanrootsninelg.jpg

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