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by wonder_er
1108 days ago
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Great question. I think because plastic and rubber are both petrolium byproducts, the 'shreds' of both are bad. I googled, found:
> Current tires consist of 19% natural rubber and 24% synthetic polymers (plastics), as well as metal and other materials. So tires have both rubber and plastics. both are bad, and both get ejected into the environment at a horrific rate. :( |
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