One of the most striking images in David Attenborough’s Ocean, his defining 2025 documentary, is of supertrawlers dragging vast krill nets through a pod of feeding humpback whales off Antarctica. For most viewers, it will have been the moment a distant and invisible crisis became viscerally real. But it was also something else: a glimpse of what is at stake if we fail to act, and a reminder of how little time we have left to protect some of our planet’s most precious resources. The Souther