Over 6 trillion cigarettes are produced each year globally, resulting in 1.2 million tonnes of toxic waste dumped into the environment.
Researchers have previously shown fired-clay bricks with 1% recycled cigarette butt content are as strong as normal bricks and use less energy to produce.
https://www.eurekalert.org/pub_releases/2020-09/ru-hcb091620.php
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