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Liquid Trees
(lemmy.world)
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this post was submitted on 04 May 2025
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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.
I think the problem is putting them in those dumb tanks where a tree would be, as if to say "do this instead". The principle would be fine if they got a bit more creative with it and played to its strengths, e.g. if you make a train platform out of it, or the railings of an overpass, or the external wall panels of buildings etc.
Ofc OOP didn't actually provide a source so we've no idea what the creators were actually thinking...
A cursory search for "liquid trees micro algae" led me here: https://liquidtrees.org/urban-solutions
Thanks for that. It looks from that like a relevant detail OOP missed out is that these thing (purportedly) claim to produce as much oxygen as 15 trees, which isn't nothing.