Air pollution can be a major problem in inner cities where there are few trees to absorb it and planting trees is not practical. The solution? Syrian scientists have invented “liquid trees”, contraptions they say are 10 to 50 times more effective at binding carbon dioxide than trees.
How Liquid Trees Could Help to Clean Up Our Urban Jungles
https://en.reset.org/how-liquid-trees-could-help-to-clean-up-our-urban-jungles/
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