A fresh report out this week entitled, “Ageing Water Storage Infrastructure: An Emerging Global Risk,” comes from the United Nations University an warns that the 58,700 of the world’s large dams are at risk because they are too old – many of the over 100 years old. The conclusion is either to decommission them or repair them, but either way it’s another cost that countries have to factor in. In its opening page it warns that by 2050, the global population will be 10 billion and most of it will be downstream from a dam holding back tons and tons of water and many of those dams were built in the 20th century. In some cases decommissioning the dams is impractical…