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How human noise affects ocean habitats | Kate Stafford

Sonar systems developed for the U.S. Navy to detect enemy submarines generates slow-rolling sound waves at around 235 decibels. For reference, the world’s loudest rock bands top out at only 130. These waves are able to travel for hundreds of kilometers under water and can retain intensity as far as 500 kilometers from their source.

In this TED-Talk, oceanographer Kate Stafford lowers us into the sonically rich depths of the Arctic Ocean, where ice groans, whales sing to communicate over vast distances — and climate change and human noise threaten to alter the environment in ways we don’t understand.

 


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