Record Sargassum seaweed blankets Florida beaches, researchers warn other states nextRecord Sargassum seaweed blankets Florida beaches, researchers warn other states next

University of South Florida researchers report that Sargassum seaweed has accumulated in record amounts along Florida's Atlantic and Gulf Coasts, the Florida Keys, the Caribbean, and the Lesser Antilles. The brown seaweed emits hydrogen sulfide as it decomposes, producing a characteristic rotten-egg odor. The Florida Department of Health says Sargassum itself isn't harmful to skin, but creatures living in it can cause rashes and blisters, while the hydrogen sulfide can irritate eyes, nose, and throat — particularly for people with asthma or respiratory conditions.

sargassum seaweed is piling up in record amounts on Florida beaches right now and it smells like actual rotten eggs. University of South Florida researchers flagged the buildup across the Atlantic coast, the Keys, the Caribbean, and the Lesser Antilles. The smell comes from hydrogen sulfide as it rots. Florida Health says it won't hurt your skin directly but the stuff living in it can cause rashes, and the gas irritates eyes and throat — worse if you have asthma.