In some countries - such as central Europe, Switzerland, Germany and Austria - villages built on the water or at the water's edge have been well known since many thousands of years.
All of those ancient villages on the water or at the water's edge had one in common - they all dumped all their daily waste and trash into the water
During my active SCUBA diving instructor time I often took some time off for treasure hunting or artifact collecting. Civilizations living on the water always dumped all into the water. Today as well. In ancient time all household goods were made of natural material, hence all trash into a lake was made of natural material and thus bio-degradable.
Trash of ancient times turns into treasures for today's artifact collectors.
Trash of modern times however turns into a death penalty for today's nature as most of our household goods are made of NON-biodegradable materials or even worst of straight forward toxic component, fatal for our environment as well as for mankind.
Self discipline is the key to keeping our environment alive for the remainder of time. Self discipline also includes to refrain from shopping goods or cleaning agents of known dangerous or toxic nature.