Captain Paul Watson of the Sea Shepherd Conservation Society draws an illustrative analogy that people are just passengers on a spaceship called Earth. Watson explains why ‘popping the rivets’ of the ship – or removing species from the planet, one by one – has disastrous implications for us all.

More videos in this series:

Captain Paul Watson: What It Takes To Be A Sea Shepherd Volunteer

Paul Watson: On Prop Foulers And Other Tactics

Paul Watson: You Can Change The World

Paul Watson: The Whale That Changed My Life

Paul Watson: If We Kill Our Oceans, We Kill Ourselves