A boat floats on the water, surrounded by sargassum, a seaweed-like algae, in Bahia La Media Luna, near Akumal in Quintana Roo state, Mexico, Aug. 5, 2018. With more algae spotted floating out at sea, experts fear that 2022 could be as bad or worse than the catastrophic year of 2018, the biggest sargassum wave to date. (AP Photo/Eduardo Verdugo, File)