Antigua and Barbuda is one of several countries that have been put on notice to brace for record-breaking levels of sargassum piling up on their shores this year.

The Atlantic's sargassum seaweed swath reached a record size for December but it's too soon to tell what that will mean for Gulf of Mexico beaches.

A record amount of sargassum is lurking in the Atlantic Ocean, just east of Florida, and could blanket Treasure Coast beaches this summer with the stinky and prickly seaweed.

A woman sunbathes on a beach during the sargassum seaweed in Playa del Carmen, Mexico on June 3, 2025. REUTERS. As part of the Mexican government’s response, officials planned to focus on ...

This year’s crop of sargassum may be the largest seaweed blob to hit our shores yet. Water pollution, increased agricultural runoff and human waste are all contributing factors, as are the wa… ...

The Great Atlantic Sargassum Belt, a 5,000-mile-long belt of seaweed weighing more than 11 million tons, is threatening to wreak havoc in the coastal waters and beaches of the Atlantic Ocean. It's ...

Sargassum seaweed has washed ashore beaches before, but something changed in the past two decades. Since 2011, large swathes of sargassum began migrating into the Caribbean Sea nearly every summer.

Sargassum hurts ecosystems and economies wherever its overgrown arms reach. And the seaweed is reaching into Florida’s waterways, coating marinas and beaches in the Miami area.

A time lapsed model depicting interannual Sargassum blooms in the North Atlantic. The alga was pushed southward and injected into the tropics, where it proliferates today, through a series of ...

Sargassum, a type of brown seaweed, originates in the Atlantic Ocean and provides crucial habitat for marine life. Experts predict a record year for sargassum, with massive amounts already ...

The Caribbean region is experiencing a record influx of sargassum seaweed, a brown, prickly algae, impacting beaches, tourism, and even wildlife. This natural phenomenon has escalated in recent ...

A massive Sargassum bloom is spreading across the Atlantic, but Florida’s beaches are likely to stay clear this season. Discover how ocean currents and advanced satellite tracking are keeping ...