The world agreed to protect 30% of the ocean by 2030 - but marine protection can't be judged by area alone

The global goal to safeguard 30% of the world’s ocean by 2030, known as 30x30, has driven a rapid expansion of marine protected areas worldwide. Two new OSU and Smithsonian Tropical Research Institute analyses argue that size alone cannot measure success, noting that effective protection hinges on consistent rules, adequate financing, ongoing monitoring, and meaningful local collaboration across jurisdictions and governance regimes globally. Without those ingredients, the reports warn, protected zones risk becoming 'paper parks' that fail to curb overfishing or habitat loss and lack public accountability and transparent reporting.

OSU notes that past commitments have helped establish more than 3.88 million square miles (10 million square kilometers) of MPAs, about 2.8% of the global ocean, yet only about 3.5% is fully or highly protected. The reports stress that ambitious pledges must be matched with consistent enforcement, monitoring, public reporting, and transparent governance to translate commitments into real conservation outcomes. With the Our Ocean Conference in Kenya scheduled for June 16–18, 2026, stakeholders are urged to move from rhetoric to durable, well-funded, and enforceable management, along with transparent reporting and independent evaluation.