Tiny flakes of plastic, generated by the wear and tear of normal driving, eventually accumulate in the soil, in rivers and lakes, and even in our food.
The hemp used to make clothes (and rope) is Indian Hemp - dogbane. Its a native of North America (the "indian" refers to red indians, not the country India), unlike marijuana which is European. Its not banned anywhere.
Watch half the people in this sub completely scroll past your comment ignoring the fact that they are contributing to being insane amount of microplastics in our blood currently