In South Texas, aging water system meets growing population

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A man casts a net into a canal, Tuesday, Sept. 14, 2021, in McAllen, Texas. Canals used to deliver water in many parts of the Rio Grande Valley lose anywhere from 10% to 40% of the water they carry to seepage and evaporation, according to the Texas Water Development Board, making water a growing concern amid climate change and rising demand that scientists predict will lead to water shortages in the region by 2060.(AP Photo/Eric Gay)