An enormous belt of Sargassum seaweed is currently spreading across the Atlantic Ocean, stretching approximately 5,000 miles from the coast of Africa to the Americas. This phenomenon, known as the Great Atlantic Sargassum Belt, has become a recurring seasonal event since 2011, thriving in warm, nutrient-rich waters and influenced by ocean currents and climate patterns like the Atlantic Equatorial Mode. While Sargassum provides habitat for marine species in the open ocean, its excessive accumulation on beaches poses significant ecological and economic challenges.