Twenty-five years after first warning that oil spills would wane while invasive species and climate impacts would surge, an international team revisits its coastal forecasts and finds many bullās-eyes, alongside surprising misses. Plastic pollution, ocean acidification, and sensory pollution have risen faster than imagined, even as strong treaties curbed chemicals like TBT. The scientists argue that shorelines remain āsentinelsā for the global ocean and urge a blend of local action and sweeping accords such as a Global Plastics Treaty to keep future surprises in check.