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Tangent: Does anyone know if/how the human impact of planting trees is measured? What I mean is, what metrics determine the "quality" of a tree plant? I assum
by CamelCaseName 7y ago
Tangent:
Does anyone know if/how the human impact of planting trees is measured?
What I mean is, what metrics determine the "quality" of a tree plant? I assume this can vary greatly based on location and type of tree planted.
I often see impact quantified by CO2 removed from the environment, but what about the impact on people nearby?
Would it be better to plant 100 trees in the center of New Delhi, where the air is toxic and the population is sky high, or 10,000 trees in rural USA where the air may already be very clean?
On topic:
This is incredibly serious as pollution has serious effects not just on health, but on intelligence and behavior. It's a vicious cycle and India needs to break out of it. The environment minister's comments in the article are unbelievable.
- Retric 7y agoThere are many trees around New Delhi, they don’t do much in terms of air pollution. https://www.greenpeace.org/india/en/story/454/are-the-green-spaces-in-delhi-free-from-air-pollution/ https://www.greenpeace.org/india/en/story/454/are-the-green-... At best they spread pollution over a wider area thus reducing the concentration.
- BurningFrog 7y agoTrees might as best smell nice and provide shade. They do nothing to purify air.
- _iyig 7y agoSeems like it’s a bit more complicated than that: “The relationship between trees and air pollution is a complicated one. Particulate matter suspended in polluted air tends to settle onto leaves, and certain gases including nitrous dioxide (NO₂) are absorbed by leaves’ stomata, filtering the air and reducing pollution levels slightly. But trees and other vegetation also restrict airflow in their immediate vicinity, preventing pollution from being diluted by currents of cleaner air. In particular, tall trees with thick canopies planted alongside busy roads can act like a roof, trapping pockets of polluted air at ground level. To reliably improve air quality, city planners need to give careful consideration to how trees are placed.” https://www.sciencefocus.com/planet-earth/do-trees-reduce-air-pollution-levels/ https://www.sciencefocus.com/planet-earth/do-trees-reduce-ai...