Miami-Dade County Closes Some Beaches After Toxic Algae Confirmed

Miami-Dade County has closed its northernmost beaches after tests came back positive for a toxic algae bloom, raising health concerns for bathers and posing a serious threat to South Florida’s massive tourist economy.

Such blooms, known as red tide, can kill off marine life and cause breathing difficulties in humans. Long before Miami-Dade’s announcement, the phenomenon had already been plaguing other Florida beach communities in recent months.