While I don't want to spoil the joke (but I will) and I hate techno-optimist solutions that displace actual solutions for our biosphere as much as the next person: supposedly, Belgrade is such a dense concrete hell that trees aren't viable solution (at least in the short term).
There is some rumbling that liquid trees are not the solution to the real problems caused by large-scale deforestation, nor does it reduce erosion or enrich the soil. However, much of this wrath is misplaced as Liquid tree designers say that it was not made as a replacement for trees but was designed to work in areas where growing trees would be non-viable. Initiatives like Trillion Trees are laudable, but there is something to be said for the true utility of this tiny bioreactor. The fact that they can capture useful amounts of carbon dioxide from day one is another benefit for them. Such bioreactors are expected to become widespread in urban areas around the world as the planet battles rising carbon levels in the atmosphere.
Like I always think that people don’t get one thing about trees in a city. There purpose is is not about co2. The co2 reduction of city trees is neglectable. The reason you need them in a city is temperature regulation, shade, air quality, mood, the local eco system and maybe solidifying unsealed ground. Putting these tanks in a city is laughably inefficient w.r.t. co2 conversion if you compare this to any effort to do this in instustrial capacity ( which is is also still laughably inefficient)
ITT: People who looked at some random headline, didn't bother looking further and assumed they knew everything.
It's a stupid headline. These tanks, are to directly affect air polution/quality in urban areas. Trees are terrible at that. The microalgae is 10-50x more effective in cleaning the air.
They aren't going to rip out trees for these. It would have taken you 10 seconds to find the source of the image and the article from 3 years ago to find out, the social media post was misleading. You spent more time making incorrect and wild accusations.
I discovered when I joined a volunteer litter-picking group in my town that some people really hate trees. And I must emphasise HATE. They hate the shade they cast in summer, the way the leaves block the all-important View. They hate the fallen leaves in autumn. They hate the bare branches in winter. They hate the risk of branches falling in storms. They hate the racket the birds make. I was astonished - it never occurred to me that people would feel so strongly.
I guess the "problem" with trees is obvious: it takes decades for them to produce the desired cooling effect in urban areas.
You plant a dozen young trees today, you can begin to reap the cooldown 10 years later at best.
Also, they need a lot if water, and many of them just don't make it - urban surroundings are just much hotter and more stressful (smog, salt...) then standing with other trees in a forest.
I fail to see though how these artificial "trees" provide any kind of benefit at all.
A few reasons:
Trees need a lot of space and the space underneath a sidewalk isn't enough for long term life. They can die after like 30 years? This is tree dependent and location dependent.
Tree roots can destroy sidewalks making it harder for people to go over them. (Think people in wheel chairs)
Liability in terms of damage (have you seen trees after a storm?)
The issue with trees is you need to adapt the city to them, you can't adapt them to the city. And people have proven once and again that they would invent anything to not move by an inch when our way of life is put in question.
So we push forward with absurd solutions one after the other: carbon capture, atmospheric geo-engineering, a damned nuke in antarctica, and now "liquid trees".
Because the alternative is to change our ways, and we can't face that.
Has the manufacturer even calculated how much energy is needed for production and how long it will take for the corresponding CO2 emissions to be amortized?
The problem with trees in an urban setting is trees have roots, and these cause issues. The can damage pipes and other underground objects. And many trees that are designed to not have these issues, end up with stunted/damaged roots which severely effects the trees growth. Planting trees in urban settings take quite a lot of pre-planning, and aren't drop in solutions, and if the areas weren't originally designed with trees in mind, you are likely to cause more problems than solutions.
Insert random copypasta about biotech breakthrough that turns water and CO2 and nutrients into sustainable building materials which sounds like space age technology but it's just trees
Few things about trees in cities: (1) tree roots ruin sidewalks because they upend that stuff; (2) tree roots get into and ruin infrastructure, (3) not every curb can sustain a tree, so these could fit where a tree could not; and (4) they damage stuff when they fall over in storms.
Welp, all the trees are gone but at least there are these cloudy stinking tanks of goo everywhere. Does anything not dystopian happen anymore? Like these things are a set piece from Blade Runner FFS.
Less infrastructure erosion from roots? Integration into places like above ground parking spaces? Hell could you imagine integrating them into bridge underpasses or walk ways? Heck make a semi destructible version and use that for crash bollards. Only a level 5 vegan is going to complain if some allege is spilt.
All these braindead silicon valley tech bros trynna reinvent existing solutions to problems in very expensive and unnecessary ways, marketing it as "revolutionary" and "groundbreaking"
If it's actually more efficient then trees, could be a good idea. Saw a 51/49 video where he explained the urban development in the US requiring only male trees be planted leads to increased pollen levels and has made the "allergy season" 30+ days longer over the past 50 years or so.
Green shit on your terrace, leaves fucking everywhere, looming threat of bird shit on your head, seeds everywhere, roots growing through everything, blocking the sun at every step, tough lessons in gravity for things kids climbing them, lot of damage when it's stormy out.
But nah trees are great, really.
Edit: apparently I need to clarify that I really do love nature more than the concrete jungle, but there are things you can find that are not that great about trees.
What happens when one of these breaks and drains into the sewer system? Algae blooms cause noxious odors and would proliferate quickly in the nitrogen-rich environment of human waste water, potentially building up as clogs in the sewer lines. And if the system drains into a natural body of water, the algae can have devastating toxic effects on the natural wildlife. If it doesn't drain and instead gets recycled, then the water treatment process becomes much more difficult and expensive.
I would support legislation that mandated these be used around the highest carbon emitting facilities. Maybe a few very well designed structures (algae tanks) in very densely populated cities.
These would be in no way a replacement for trees in a community but, I could see forcing the corporations to use them. Such as those that must pollute because, they can not manufacture these products without polluting.
The problem with trees is they are used as lumber. The national parks has always been protected. But Trump has unprotected parts of the national parks to be cut down for lumber.
The issue with trees is you need to adapt the city to them, you can't adapt them to the city. And people have proven once and again that they would invent anything to not move by an inch when our way of life is put in question.
So we push forward with absurd solutions one after the other: carbon capture, atmospheric geo-engineering, a damned nuke in antarctica, and now "liquid trees".
Because the alternative is to change our ways, and we can't face that.
Can we please, stop reposting this same shit pic for the last, I dunno, year?
This is the gazillionth time. I get it. Is a stupid algea tank. where a simple tree does the same for a fraction of the cost. It's of no use in the public space except as a tech demo or art object.