This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at http://ted.com/tedx

The underwater isn't silent, it's as noisy as any jungle or rainforest, but climate change is dramatically changing the soundscape so the impact on the planet could be cataclysmic.

Oceanographer Kate Stafford takes us on an auditory and visual journey, from the depths of the ocean and up to the surface with a clear message: to develop local solutions to reduce human-caused underwater noise.