Momentum is growing around the world towards criminalising severe and either widespread or long-term damage to ecosystems (increasingly known as “ecocide”) at the international level, which could create a desperately needed legal safety rail for commercial activity, deterring the worst harms, strengthening existing laws and, importantly, creating the enabling framework for strategic change and innovation. Find out how this powerful legal initiative can protect key marine ecosystems into the future, deterring severe threats, transforming our relationship with the oceans and protecting our own place on our planetary home.