Published: May 10, 2019, 01:05 IST | Updated: May 10, 2019, 01:05 IST
Tourists looking for sun and sand in Mexican resorts like Cancun, Playa del Carmen and Tulum have been disgusted by foul-smelling mounds of sargassum, a seaweed-like algae, piling up on beaches and turning turquoise waters brown, and experts are warning that it may be the new normal.