Prince William and Sir David Attenborough explore the urgent peril of the world’s oceans, ahead of World Oceans Day and William’s speech at a global conservation summit

David Attenborough has described the human impact on the deep ocean floor as “unspeakably awful” in a conversation with Prince William to mark the launch of the veteran broadcaster’s latest documentary.

Prince William on June 8 called upon world leaders to protect the planet's oceans, calling it a challenge "like none we have faced before."