Noise pollution is normally seen as a problem for big cities. In this talk, marine biologist Steve Simpson sets the story straight, describing how human-made sounds are the culprits behind catastrophic marine disruptions. Simpson lays out several concrete methods for a relatively quick and easy fix to decrease our noise levels.

Marine biologist, fish ecologist and self-confessed ocean optimist Steve Simpson explains the intricate sounds that exist in our oceans -- and why listening to this soundtrack can help us protect it. This talk was filmed at TEDxExeter. All TEDx events are organized independently by volunteers in the spirit of TED's mission of ideas worth spreadi...

For 46 years, South Africans lived under Apartheid, a strict policy of segregation that barred the country’s Black majority from skilled, high-paying jobs, quality education, voting, and much more. So, how did these laws come to be? And how did this era of institutionalized discrimination finally come to an end? Thula Simpson explores how coloni...