This United Nations report on India’s 3,700 dams is worrying! you also read

All the reports have been saying that the world will have to deal with the water crisis in the future. Now, a UN study warns that around 3,700 dams in India will lose 26 percent of their total water storage by 2050. The reason for this is the sediment deposited in the dam. Reduced storage capacity may affect future irrigation and power generation. According to the information, in the year 2015, the Central Water Commission had said in its report that of 141 large reservoirs that are more than 50 years old, the storage capacity of a quarter of the reservoirs has been reduced by 30 percent. . Due to siltation, the total storage capacity of around 50,000 large dams around the world has decreased by 13 to 19 percent.

The study was carried out by the United Nations Graduate Institute for Water, Environment and Health (UNU-INWEH), also known as the UN expert group on water. The study establishes that by the year 2050, the total storage of water in 47,403 large dams in 150 countries will be reduced from 6,316,000 million cubic meters to 4,665,000 million cubic meters. In other words, the storage of water in dams in countries around the world can be reduced by 26 percent, which is 1,650 million cubic meters.

According to the report, having less than 1,650 trillion cubic meters of water storage also means that countries like India, China, Indonesia, France and Canada use so much water each year.

The report also states that the Asia Pacific region is the most affected due to sedimentation from dams. The storage capacity of dams in this region is expected to decrease by 23 percent by 2022. By the middle of this century, this capacity could be reduced by another 23 percent. It is also worrying because 60 percent of the world’s population lives in this region. Water scarcity can have serious implications for food and water security here.

Worrying information has also been given in the report on China. It has been said that China’s dams have lost about 10 percent of their storage capacity and by 2050 storage capacity will be reduced by another 10 percent. Excess sediment in the water affects the capacity of the dam. The sediment is deposited on the surface of the dam and the life of the dam is reduced.

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