Noise pollution is penetrating further into our oceans, endangering marine animals Posted ThuThursday 4 updated ThuThursday 4 FebFebruary 2021 at 11:20pm Dolphins use echolocation to find prey, but researchers are finding that sound is important to most marine animals. ( Share Print text only Cancel Human-generated noise pollution is increasingly dominating our oceans and drowning out marine life, with potentially negative consequences for our marine ecosystems. Key points: Most marine animals rely on sound for survival, but there's a lot of uncertainty about how human-generated noise impacts them Human sounds are increasing: noise along international shipping routes jumped 32-fold in 50 years Researchers argue noise needs to be considered alongside physical pollution when assessing the potential impact of development