These models only address the supply-side of water resources likely to be affected by climate change. Our demand for water has also been increasing thanks to overpopulation, poor conservation of surface water sources, and our extravagant use of water in agriculture, power generation, and industry. And then there is the depletion and toxic degradation of our water resources to extract fossil fuels through unconventional recovery methods such as shale gas drilling, oil sands refining, and mountaintop removal coal mining.
Between climate change-induced drought, excessive water consumption, and water pollution, we are loading at least five bullets into the chambers of a six-cylinder gun. Instead of pointing the gun at our head, we are taking aim at our children, grandchildren, and great grandchildren.