Thu, 03/16/2023 - 15:57 Tech Insider Park guard Roberto Varela walks over sargassum seaweed piled up on the seashore in Guanahacabibes Peninsula, Cuba.Alexandre Meneghini/Reuters Tags Science, News, Seaweed, Mexico, Florida, Beaches, algae bloom, sargassum, Atlantic Ocean, Climate Change, News UK, UK Weekend Source Images from space show a 5,000-mile bloom of seaweed threatening the beaches of…