As the fossil fuel age comes to a close, sustainable alternatives such as off shore wind farms and tidal swings are on the increase. This is of course great news for reduction of carbon emissions and minimising the impacts of climate change. However, often in their implementation and function, these alternatives also create a tremendous amount of ocean noise pollution. One issue with wind turbines with regards to the sound that they produce is that the sound of their moving components travels down the supporting shaft and into the surrounding waters. This is not necessarily an issue where a single turbine, but existing wind farms and those being planned often feature hundreds, even thousands of wind towers. It is believed that their combined sound may create substantial no-go zones for sea animals that rely on sound for their survival.
Notwithstanding, since they represent such a positive outcome for minimising climate change, economic considerations must be regulated to limit their impacts on marine life.