closeup of male hand in protective glove scoops river water infected with green algae. research of ecological problems. environment, nature, save earth
Blue ocean with microorganism patches aerial satellite view. Contains public domain image by Nasa
Aerial view of landscaped nature reserve Volgermeerpolder, constructed on top of a former waste disposal site, with blue-green algae in one of the lakes, Noord-Holland, Netherlands
aerial of wide river contaminated with green algae with fishing houses on bank. environmental problems, ecology and nature
Aerial of stromatolites turquoise water of Word Heritage Shark Bay in WA
aerial top down of half sandy beach and half water polluted with green algae. environmental problems, ecology and nature
closeup hand in glove scooping water in river polluted with green algae in slow motion. research of ecological problems. environment, nature, save earth
Aerial view of ancient living fossils of stromatolites on the shore of Shark Bay
Aerial view of landscaped nature reserve Volgermeerpolder, constructed on top of a former waste disposal site, with blue-green algae in one of the lakes and dark clouds, Noord-Holland, Netherlands
side view of woman ecologist taking samples of green algae in test tube on riverbank in summer. research of ecological problems. environment, nature, save earth
Aerial view of ancient living fossils of stromatolites on shore of Shark Bay
aerial of wide river colored in green because of green algae pollution. environmental problems, ecology and nature
aerial top down of green algae in harbor water near fishermen village. environmental problems, ecology and nature
aerial top down of fisherman village with green algae pollution in harbor water. environmental problems, ecology and nature
ecologists research green algae sample taken in river and enter data on tablet. analysis of ecological problems. environment, nature, save earth
ecologist on river bank examines green algae sample and enters info on tablet. scientific research of ecological problems. environment, nature, save earth
closeup male hand holding and shaking container with green algae inside in slow motion with blurred river on background. scientific research of ecological problems. environment, nature, save earth
Narrow river flowing and dividing dried ground. Shot. Autumn landscape with the field with cracks and cold fast flowing stream.
female ecologist on river bank examines sample of green algae in container and enters data on tablet. scientific research of ecological problems. environment, nature, save earth
Aerial view of landscaped nature reserve Volgermeerpolder, constructed on top of a former waste disposal site, with blue-green algae in one of the lakes, Noord-Holland, Netherlands
side view of woman ecologist examining sample of green algae and entering data on tablet standing on riverbank in sunlight. research of ecological problems. environment, nature, save earth
closeup of researcher hand scoops river water full of green algae and lets it flow down. analysis of ecological problems. environment, nature, save earth
aerial top down of sandy river bank and water heavily polluted with green algae. environmental problems, ecology and nature