Water use efficiency was a hot topic among sustainability experts in 2018, as changing weather patterns, a US population increase of 4%, and aging water infrastructure continue to put a strain on our nation’s water supply. But for all the dire news about the negative impacts of climate change on weather patterns, water restrictions and storms that spilled wastewater into city streets, good news happened, as well. Cities and municipalities are moving forward with innovative water conservation efforts. El Paso, Texas, for example, is building an advanced purification system that will treat sewage water and turn it directly into drinking water.