Researchers say nearly 38 million tons of sargassum has piled up in the Caribbean Sea, the largest amount ever observed. It’s affecting tourism and wildlife in the region. NBC News’ Marissa Parra ...

A record bloom of sargassum in places like Puerto Rico and Mexico is impacting beachgoers with its strong smell and can cause ...

A record 38 million tons of sargassum piled up in the Caribbean, harming wildlife, tourism, and releasing toxic gases.

Blooms of smelly, toxic seaweed shattered records in May, growing to over 37 million tons and inundating beaches around the ...

A gelatinous sea creature recently washed ashore on a South Texas beach. Turns out, it's related to an ongoing invasion of ...