As summer approaches, beachgoers may need to check an additional forecast detail before heading to the shore: the Sargassum ...

Though rare, a powerful undersea landslide or seismic event could trigger a mega-tsunami capable of devastating the U.S. East Coast—putting millions of lives and critical infrastructure at risk. [tsun ...

Florida beaches might get a little browner and stinkier than usual this summer after researchers already have noticed two ...

The Atlantic Ocean has a toxic seaweed problem. Floating in brown islands of algae, this year’s sargassum bloom has already ...