The Chairman of the Supervisory Board of the Institute of Demography, Migration and Regional Development, Yuri Krupnov, proposes to reconstruct all the rivers and temporary streams of Crimea into cascades of ponds and reservoirs for the accumulation of sedimentary water for their subsequent use. The corresponding appeal (available to News.ru) was sent to Russian President Vladimir Putin.Prior to the reunification of Crimea with Russia in 2014, Ukraine met up to 85% of Crimea’s fresh water needs through the North Crimean Canal coming from the Dnieper. After the peninsula became part of the Russian Federation, water supply was cut off at the initiative of Kiev.The greatest problems arose among farmers in the north of Crimea. They had to switch to growing crops that require less moisture. Great difficulties also appeared in the east of Crimea. Partially, the problems of water supply were solved after the transfer of water from the Biyuk-Karasu River to the North Crimean Canal and the drilling of new artesian wells.As follows from the appeal, the cessation of water supply through the North Crimean Canal led to an acute shortage of fresh water in Crimea and to an increase in the socio-economic and even geopolitical problems caused by it. At the same time, exploitation of artesian waters intensified, and a decrease in their quality is noted.Meanwhile, it is possible to satisfy the needs of Crimea for fresh water in the volumes that Ukraine supplied.So, on the rivers of Crimea from time to time rain floods are observed, and in summer they are rare or even absent. They occur mainly in the autumn-winter-spring period, when the need for water is minimal. In addition, in Crimea there is a huge number of temporary watercourses – water flows in them only after rains.Yuri Krupnov, Chairman of the Supervisory Board of the Institute of Demography, Migration and Regional Development:The waters of these floods flow to the sea uselessly. They could be accumulated in ponds and reservoirs, and later used, but this requires hundreds of ponds and reservoirs, while currently there are only a few reservoirs in Crimea. In these circumstances, it seems necessary to implement a special long-term program for the reconstruction of all rivers and temporary streams of Crimea into cascades of ponds and reservoirs for the accumulation of sedimentary water (at the time when they are, but not needed) and their subsequent use.The principles of such river reconstruction are set forth in the River Doctrine of the Russian Federation project developed by the Institute, he said.Krupnov added that the proposed program could be organized in the format of the federal project “Ensuring Water Sovereignty of Crimea”.The mountainous terrain in the south of the peninsula is characterized by an abundance of precipitation (up to 2000 mm / year), while the steppe Crimea in the north is arid (no more than 300-400 mm / year). The water collected in the reservoirs of the Crimean mountains can be gravity-fed to settlements and irrigated farmland in the steppes of the peninsula, Krupnov believes.With all reservoirs, hydroelectric power plants must be built that can operate in the power system, or for an isolated consumer: each pass from the reservoir will generate electricity. In many cases, hydropower plants in reservoirs can be combined with wind power plants, ”he said.The author of the initiative is convinced that the proposed solution to the water problem of Crimea in the form of creating cascades of ponds and reservoirs will be useful in the case of resuming water supply through the North Crimean Canal: this will allow rational use of water resources for the needs of the population and the economy.The Permanent Representative of Crimea to the President Georgy Muradov in August said that Crimea has a legal right to supply Dnieper water from Ukraine, because the source of the Dnieper is located in Russia:Dnieper water flows from the territory of Russia. Therefore, the Kiev authorities, having cut off the supply of water to the Crimea, flagrantly violate not only international humanitarian law – the right of people to water, but also the international right to use the effluents of international rivers, especially since we are not talking about providing free water to Crimea.In April, the head of the region, Sergei Aksyonov, spoke out that a comprehensive Crimea water supply scheme would be developed by the middle of this year. He called the water blockade of Crimea a part of the strategy of the West and said that it did not bring the results expected by Kiev – there is no water shortage for household and drinking needs, the peninsula’s economy is developing, the flow of tourists is increasing, and agriculture has adapted to new conditions.