this post was submitted on 04 May 2025
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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)
So.. are you saying the air inside a city park isn't better at all?
I think there is a difference between air quality (pollution) and co2 levels.
Cool they you think they but there are not walls that prevent air from mixing.
Probably not a statistically significant difference since wind is a thing.
They were talking about CO2 which is what the algae tank is about.
Trees have other benefits around filtering pollutants that affect air quality such as sulphur dioxide and nitrogen dioxide. Also the shading effect reduces ozone accumulation as well as generally helping reduce the urban heat island effect (which in turn reduces the amount of air conditioning needed, even a small amount saves energy and reduces pollution from power stations).
City parks have clean air partly because of tree but also because youre away from roads and buildings so further from car exhausts and chimney stacks. The concentration of pollutants in wide open spaces is lower because the wind can move it around more easily, and there isn't a pollution source directly near by. Tree and grass do help too.
Amazing answer, thanks a lot!
Dunno what i'm getting downvotes for
I think it's because they mentioned trees improve air quality right there in their comment, and then you responded like you didn't read it
To be fair, I think it's important to make a distinction between a city park, and a handful of trees lining a busy street.
CO² isn't want you should be concerned about with air in a city anyway, its the other emissions like particulates. Just being further away from busy roads reduces that significantly so the park air would be better.
It is, because of the humidity, temperature and also they remove air pollution. Just not CO2