Mexico is one of a growing list of countries deemed most at risk of hitting “Day Zero” when they no longer have enough water to meet citizen needs, according to a new report by global research organization, World Resources Institute (WRI). The nonprofit institute categorized countries into five different levels according to their relative risk of consuming all of their water resources, ranging from “Low Baseline Water Stress” to “Extremely High Baseline Water Stress.” Mexico is one of 44 countries – representing one-third of the world’s population – that fall into the second-highest category, “High Baseline Water Stress,” meaning that the nation consumes between 40 and 80 percent of the water supply available in a year.