Red and green algae-covered snow on Petermann Island, Antarctica, Southern Ocean, Polar Regions

Vibrant pink water lily blooming in a tranquil pond with green algae and lily pads, reflecting serene beauty in nature at Kew Gardens, London, England, United Kingdom, Europe

Aerial view of algae bloom. Great South Channel of Chatham, MA, USA (rr)

Aerial view of algae bloom. Great South Channel of Chatham, MA, USA (rr)

Phytoplankton bloom off Ireland, satellite image

Aerial view, Kemnade reservoir with algal bloom, Hattingen, Ruhr Area, North Rhine-Westphalia, Germany, Europe