Warming oceans are getting louder

Climate change is speeding sound transmission in the oceans and the way it varies over the globe with physical properties of the oceans. Two ‘acoustic hotspots’ of future sound speed increases are predicted east of Greenland and in the Northwest Atlantic Ocean, East of Newfoundland. In these locations, the average speed of sound is likely to increase by more than 1.5% if ‘business-as-usual’ high rates of greenhouse gas emissions continue through 2100.

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