If we really want to save this planet with its existing life forms and diversity, then we must shift our thinking from human superiority to nature superiority.
Ocean noises originate from sources which are categorized into natural and manmade. Marine mammals get accustomed to the natural sources as they are a part of their habitat, however manmade sources deeply impact their numbers.
Finally, the combination of plastic-infested Ganga and Indus rivers, the Great Pacific Garbage Patch, and the plastic ban initiated by Govt. of Maharashtra in March 2018 convinced me to take up this environmental cause, albeit in personal capacity.