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Liquid Trees
(lemmy.world)
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this post was submitted on 04 May 2025
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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?)
Still and this is the big thing, these are all possible considerations, plenty of urban areas, once they reduce street traffic to what is seen in European and other areas could also vastly greenify areas via mini parks allowing root space (and tbh if it messes with a sidewalk well then fix it like what functional societies with infrastructure budgets doi). All in all this just gives off techbro "genius solution" grifting and likely isn't even possible on a large scale given I swear I've seen this same tumblr reblog before and yet areas that are hard on trees (Like LA) still has a crap ton of palms and other trees not even remotely habitable to the climate.
I should have mentioned this but usually stuff like this is planted in front of people's houses etc. I wouldn't expect a pine tree planted in one of those. Same with a palm tree.
I'm from Pittsburgh and there's a lot of greenery projects and ecological restoration currently going on. Outside of the city, it's very heavily wooded. But it's slow progress.
Those giant algae tanks miss the large point of trees and their physical benefits and do feel like a tech bro solution looking for a problem.