Today, one out of three people don’t have access to safe drinking water. One reason is that 96.5% of that water is found in our oceans. It’s saturated with salt, and undrinkable. Most of the freshwater is locked away in glaciers or deep underground. Less than 1% of it is available to us. Desalination is an important tool in the fight against water scarcity. Its reliability is becoming critical.
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.
The United States has enough water to satisfy the demand, but newly released data from the World Resources Institute shows some areas are out of balance. The WRI’s Aqueduct Water Risk Atlas researchers used hydrological models and more than 50 years of data to estimate the typical water supply of 189 countries compared to their demand. The result was a scale of “water stress” — how close a country comes to draining its annual water stores in a typical year. Of course, many years are not typical, and unpredictable weather patterns of a changing climate can have drastic consequences.
30 years from now, about 7 in 10 people will live in cities across the globe. One of the main challenges for the governments will be to provide infrastructure and services such as housing and safe drinking water for all. With global warming and climate change increasing the risk of floods and droughts around the world, access to clean water will be at the heart of every discussion. REVOLVE interviewed Diane D’Arras, President of the International Water Association, to talk about these challenges and the importance of raising awareness on the topic in order to create a momentum and encouraging governments and organizations to start acting now.
The effects of climate change are not far off problems for future generations. They are existential problems for everyone alive today. That’s one big takeaway from the U.S. federal government’s latest roundup of climate science, the National Climate Assessment, now in its fourth iteration. Released the day after Thanksgiving, the newest report is unequivocal. In heavily footnoted, short declarative sentences it urgently tells readers that climate change is happening, it’s human-caused, and it could make life in the Western U.S. increasingly difficult.
The Water News Network is San Diego County’s source for water news and information.
