The average rate of underwater noise has risen by around 20% since the 1970s. The loudest and most disruptive sounds come from military sonar, oil exploration and industrial shipping. These sounds are proven to disorientate and harm marine mammals, fish, turtles, invertebrates and cephalopods, who...
https://www.hellenicshippingnews.com/keeping-the-noise-down-in-a-busy-spanish-port/