The 20th century was shaped by a new world of cheap, convenient and disposable products. The lead, takes certainly the material called plastic. Scientists invented it and presented it as a perfect creation, because its indestructible. Particularly, it served the American army in the world war 2, when 85% of the plastic production was made for the military.
Nowadays you are often confronted with terms like “plastic islands” in the ocean. Nobody knows how they look like nor where they are – but does this problem even exist?