Overview
- José María Listorti posted a short Instagram video on July 5–6 showing heavy sargassum on Miami Beach and complaining about loud portable speakers, and the clip has exceeded 4.5 million views.
- NOAA and the University of South Florida have reported that sargassum levels in South Florida for June and July 2026 are exceptionally high, driven by warmer ocean temperatures and increased river-borne nutrients.
- Municipalities and hotels have increased daily removal efforts to respond to visitor complaints during the World Cup influx, with Miami spending more than $9 million a year on sargassum cleanup in normal seasons.
- Decomposing sargassum produces a strong odor, can irritate eyes and airways in sensitive people, and in large quantities harms seagrass beds and coral by smothering them.
- The viral post has broadened public attention and online debate, with tourists reporting disappointment, social media users comparing beaches to Argentine coasts, and local authorities fielding more complaints and cleanup requests.