The truth about marine noise pollution – the effect of anthropogenic sound in the sea

Sound travels 4.8 times faster underwater than in air and in the sea frequencies below 1000 Hertz can transmit for thousands of kilometers. Sound is a form of energy that is manifest as a wave of changes in pressure. It can change in frequency, wavelength, and intensity. The nature of the medium through which sound moves (e.g., air or water), its temperature, and the pressure affects the speed and path of the wave.