Reality is that human use of fresh water will always take precedence over providing water for wildlife. Therefore, the survival of many species that comprise the higher life forms of our planet's biodiversity will continue to be severely challenged under current conditions and projected additional withdrawal of fresh water for human use. Practicality demands that we make better use of our water if we are to preserve biodiversity, and ultimately ourselves. This must include reusing water to whatever extent is feasible.
Water is a substance more precious than oil and gold.
Oil and gold are associated with wealth and power but there are alternatives for both substances to meet those human desires. However, water is a basis for life for which there is no alternative. Nevertheless, water is often discarded after initial use. Wildlife are often highly dependent upon these waterbodies, but all too often the consequence is death from various disease problems. Thus a dilemma exists.