Keeping the noise down in a busy Spanish port

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.
El puerto de Cartagena lidera la estrategia de la reducción del ruido submarino en Europa

The maritime traffic of the Cartagena Port (Murcia, Spain) has exponentially increased in recent years, and it has become the main source of continuous noise in the local marine environment.