David Attenborough tells Prince William he was appalled to see what humanity has done to the ocean

By Olivia Kemp and Max Foster, CNN

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.

In a video filmed at London’s Royal Festival Hall in early May and posted to Kensington Palace’s social media channels Saturday, the biologist and natural historian reflected on the scale of human damage inflicted beneath the surface – much of it, he said, invisible to the public eye.

“The awful thing is that it’s hidden from most people,” Attenborough said. “What we have done to the deep ocean floor is just unspeakably awful. If you did anything remotely like it on land, everybody would be up in arms.”

The pioneering naturalist added that he was “a