The world’s freshwater resources are in short supply. According to the United Nations, water scarcity affects an estimated 1.9 billion people and 2.1 billion people live with drinking water services that are not safely managed. The critical point of water scarcity has led scientists to look for new and efficient ways to make the most of nontraditional sources, including sea water, brackish water and wastewater.
from Engineering and Construction News – ScienceDaily https://www.sciencedaily.com/releases/2018/05/180504122358.htm
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