Toxic dust and pressure seals: what does the reduction of the Caspian Sea mean to people and nature

Reduces large quantities of water without leaving the sea in the world At a speed May cause severe dangerTo the identity of the sealA new study revealed that it releases risk and toxic dust to coastal communities. Caspian Sea Water Size – It controls with Azerbaijan, Iran, Kazakhstan, Russia and Turkmenistan – An increase in the temperature This causes more water to enter.

Although global warming It is less than 2ºCThe Caspian Sea DescendFrom 5 to 10 m, 112,000 km² reduces its current size to 387,000 km². If this is not controlled, climate change will reduce the amount of water up to 2100 to 2100.

Leeds British University researchers have painted a map of what this means Biodiversity and human infrastructure Of the region. The most important parts of the Caspian Sea They are found in shallow waterSo it is urgent to take steps to protect the species and coastal communities.

To be larger animals that rely on the Caspian Sea

Caspian’s seals live exclusively in the Salopre Caspian Sea, where they are suitable for large temperatures. Between January and March, Seals give birth to their white fur puppies In the snow to the north of the Caspian Sea. But even 5 m decreased Reduce the surface of this habitat up to 81%, According to the new study, this will indicate enormous pressure on the already reduced population.

In 2008, the International Union for the Protection of Nature (IUCN) included the Cospos seal Dangerous speciesDue to a variety of stress factors, such as oil and gas extraction, marine transport and climate change.

The sea will also reduce The rest of the seals are inaccessible.Although the decrease in sea level can create some new islands, it is still unknown whether they will be an adequate alternative. Small seals are a clear example of the difficult situation of the Caspian Sea, but many species are threatened by their setback, and the environmental effects are very accessible.

Caspian Basin was in the past The largest diversity of the world’s sturgenies, The ancient family of big fish. Five types of sturgeons for Caspian formed in rivers They are at the most important risk Due to excessive fishing to get its meat and caviar. Now, in the summer and autumn the lower deep parts of the ocean resides in Sturgeons A reduction in possible levels Up to 45%, which can prevent fish from reaching their eggs Volga, Ural and other sub -rivers.

The Caspian Sea is a world -long habitat Migration birds Between Europe, Asia and Africa. These birds depend on coastal and sugarcane lakes, take refuge, and feed during the migration, but these habitats are lost when the water goes back.

Overall, a 10 m descent over water level It will end up four of the 10 types of the Caspian Sea. In Kazakhstan, the protected sea areas are protected by their biodiversity, excluding the lowest amount of water.

What are human impacts and how can people help?

Than 15 million people They live on the beaches of Caspian’s five countries and depend on the sea Fishing, navigation and trading. In the north of Caspian, some settlements, ports and industrial facilities may be trapped from the new coastal.

It is expected Baca Ports (Azerbaijan), Ansali (Iran) and Akhtav (Kazakhstan) The distance to the beach is 1 km.

It is possible Northern coastal communities Are most affected Income from fishing will disappear. Climate change means a double economic blow because the loss of Caspian water can change the regional climate, resulting in rainfall across Central Asia, which can make agricultural work difficult.

There are also Policy health issues. Once exposed, the seawater is likely to give dust with impurities and salt, which will indicate a serious threat to human health. It may be together HistoryOvarian Where Dust storms of Saleh SeaDry They keep the sick people.

Considering the many risks that the Caspian Sea is considering climate change, it emphasizes time. “Caspian seems to be inevitable at sea level.

“However, can be found in the decades of consequences and ways Protect the biodiversity When protecting human interests and well -being. “He continues:” It may appear for a long time, but, considering the enormous political, assembly and logistics challenges that refer to it, it is advisable Start operating as soon as possible The greatest opportunities of success. ”

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Elsin Mametov from the Ministry of Environmental and Natural Resources of Azerbaijan states that it is satisfied with the important warnings of the study, and it proves that ” To improve regional and international cooperation To help manage the impacts. “