Delegates negotiating a global plastics treaty in Geneva may be breathing in the very microplastics they're trying to eliminate. Greenpeace conducted air quality tests in Geneva ahead of the negotiations and detected microplastics. While not a comprehensive scientific study, the findings highlight the pervasive nature of microplastic pollution, which is turning up in increasingly unexpected places, including the air around these critical discussions. The presence of these particles underscores the urgency and complexity of the global effort to combat plastic pollution.