Demo
    A satellite image showing a large dark greenish-black body of water with some cloud cover and patches of green agricultural land along the shoreline.
    A blue-green algae bloom in Lake Okeechobee in Florida is visible in this NOAA image from data collected by the European Space Agency's Sentinel-2A satellite in August. Some environmental groups blame Florida's red tide on discharges from Okeechobee into the Caloosahatchee River, which flows into the Gulf of Mexico.