Seaweed blob visible from space takes aim at Florida Gulf coast

TAMPA — Marine scientists are tracking a 5,000-mile-wide seaweed bloom that is so large, it can be seen from space – and it’s heading towards Florida’s Gulf coast.

These sargassum blooms are nothing new, but scientists say this one could be the largest in history.

The thick mat of algae drifts between the Atlantic coast of Africa and the Gulf of Mexico, providing habitat for marine life and absorbing carbon dioxide, but it can also wreak havoc when when it gets closer to shore. It blocks light from reaching coral and negatively impacts air and water quality as it decomposes.

Florida’s Gulf coast is already grappling with an algae bloom amid the busy spring break tourism season. Red tide has caused dead fish to wash ashore in droves, while the risk of respiratory irritation for humans has cancelled events and driven beachgoers away.

With a blanket of sargassum approaching, spanning twice the width of the continental U.S., scientists warn that Florida beaches could soon be inundated with seaweed.