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We can create net zero-carbon roads worldwide by planting trees along all highways and streets.
How about taking roads underground and turning the space they occupy into green parks?
https://www.bbc.com/future/article/20220621-what-if-roads-went-underground
Check out this CO2-absorbing concrete we could use to create buildings that suck carbon from the air!
https://nymag.com/intelligencer/2021/05/how-new-forms-of-concrete-could-capture-carbon.html
Scientists have discovered an asphalt that can suck CO2 from the air, making it the perfect road surface material!
https://www.sciencealert.com/cheap-asphalt-that-can-suck-up-carbon-dioxide-has-been-created