r/oceans

This documentary details the impact of noise from human activities, including shipping and military sonar, on the lives of whales and dolphins. These species have evolved to rely heavily on their sense of hearing for their survival, thus are particularly sensitive to sound pollution.

Records cited by CNRS (French National Centre for Scientific Research) indicate that France alone dumped more than 46,000 barrels across two operations in 1967 and 1969, though other European countries used the same dumping ground, so researchers are still working out which barrels came from where.