Potable water is indispensable for human life. Where potable water is plentiful, it is often taken for granted. But it should not be forgotten that potable water is indispensable for human life because billions people worldwide are experiencing fresh water shortages. The shortages are certain to worsen in the coming decades.The humanitarian crisis in Colombia’s La Guajira province (about 600 miles north of Bogota) is ample testimony…
