Large volumes of underground water that were supposed to be consumed over the next century have already been used in the last five decades, an environmentalist and head of the Environment Committee for Social Health Department of UNESCO said.
“Under such critical conditions pinning hope on wet years is nothing but wishful thinking,” Mohammad Darvish was quoted as saying by IRNA.
Water levels in underground tables have dwindled by at least 100 millimeters in 50 years, he said.
To compensate the steep decline average annual rainfall should be at least 400 millimeters. In the last two (wet) years precipitation was less than 300 millimeters.
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