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This is a global environmental problem of nature pollution. Baltic sea in summer.
blue-green algae
Aerial view of an airplane flying over Lake Magadi in the Great Rift Valley, Kenya. Lake Magadi is the southernmost lake in the Kenyan Rift Valley, north of Tanzania's Lake Natron. The Rift Valley contains a chain of volcanoes and many other lakes such as the Turkana, Baringo, Bogoria and Nakuru. During the dry season Lake Magadi is covered by soda and is known for its wading birds. During the rainy season, a thin layer of brine covers much of the saline pan that evaporates rapidly leaving a surface of salt that cracks. The lake is recharged by saline hot springs and is very rich in blue-green algae, which feed insects and massive flocks of lesser flamingos (Phoenicoparrus minor). Altogether it forms a very peculiar mineral and colour-rich landscape. Currently the area is inhabited by the cattle-herder Masai tribes, but the relics of many hominids have been found in the escarpments.
Salt Pond at Mangya City, China
Gentle waves breaking over the coral reefs of the Great Barrier Reef. As seen from a scenic flight over the outer reef near Cairns
Aerial drone view of a high mineral content (gypsum) wetland.
Ripples of water on a calm sunny day.
lagoon with white sand on the island of Siquijor, Philippines
Aerial view Great Barrier Reef from sky out of air plane in Australia
Red salt lake lies between Muscat and Al-Ashkhara, often home flamingos and other birds. It is in desert area.
Pink salt lake. Salt industry - extraction of pink salt. Wonder of nature. The pink crust of salt on water.
Elevated view of colourful water flowing through forest at Canaima National Park, Bolivar State, Venezuela.
Beautiful abstract view of Sapphire Pool in Yellowstone National Park
Sorrento back beach rock pools
Idyllic beach with crystal clear water in Boipeba Island, State of Bahia, Brazil
Aerial View of Dalyan Delta
Stromatolites are living rocks - in the shallowwater at the  Ningalo Reef's Shark Bay in Western Australia
Hamelin Pool Marine Nature Reserve in the UNESCO World Heritagelisted Shark Bay in Western Australia, living marine stromatolites - monuments to life on Earth over 3,500 million years.
salt marshes of batz in france
Rottenest Island, Perth. Western Australia.
Lake Alakol autumn landscape. Beautiful place in Kazakhstan
Gastric mucosa intestinal metaplasia under microscopy
Hyperhaline Kuyalnik estuary. Crystals of self-settling (table) salt sodium chloride at the bottom in a drying reservoir, Ukraine
Aerial drone view of the Shubenacadie River, home to extreme tidal influence.
Magic of the Dead Sea. Evaporated salt forms bizarre patterns on the blue water. The photo was taken from a drone. Cold sunny winter day. Israel
Aerial view of Ben Nom fishing village, a brilliant, fresh, green image of the green algae season on Tri An lake, with many traditional fishing boats anchored. Location in Dong Nai province, Vietnam
aerial top view of islands and shallows on the Sivash salt lake near the sea of Azov
Le Chaland, Plaine Magnien / Plaisance, Grand Port District, Mauritius: Blue Bay Marine Park reef seen from the air - a marine large protected area in the southeast of Mauritius, it became a national park 1997 and in 2000 it acquired Marine Park status, in 2008 it was designated a \
Red sand at a geyser in Yellowstone National Park
Aerial view of  Dachaidan Salt Lake, China
Free Images: "bestof:Namibia AMO 2005221 lrg.jpg Phytoplankton and Hydrogen Sulfide off the Coast of Namibia Brilliant green colors in the waters of the South Atlantic off the coast"
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