Water stress and climate change: percentage change in water availability from 1961-1990 (average) projected to 2050. Graphic: Giulio Frigieri

By Robin McKie, science editor
7 March 2015

(The Guardian) – Water is the driving force of all nature, Leonardo da Vinci claimed. Unfortunately for our planet, supplies are now running dry – at an alarming rate. The world’s population continues to soar but that rise in numbers has not been matched by an accompanying increase in supplies of fresh water.

The consequences are proving to be profound. Across the globe, reports reveal huge areas in crisis today as reservoirs and aquifers dry up. More than a billion individuals – one in seven people on the planet – now lack access to safe drinking water.

Last week in the Brazilian city of São Paulo, home to 20 million people, and once known as the City of Drizzle, drought got so bad that residents began drilling through basement floors and car parks to try to reach groundwater. City officials warned last week that rationing of supplies was likely soon. Citizens might have access to water for only two days a week, they added.

In California, officials have revealed that the state has entered its fourth year of drought with January this year becoming the driest since meteorological records began. At the same time, per capita water use has continued to rise.

In the Middle East, swaths of countryside have been reduced to desert because of overuse of water. Iran is one of the most severely affected. Heavy overconsumption, coupled with poor rainfall, have ravaged its water resources and devastated its agricultural output. Similarly, the United Arab Emirates is now investing in desalination plants and waste water treatment units because it lacks fresh water. As crown prince General Sheikh Mohammed bin Zayed al-Nahyan admitted: “For us, water is [now] more important than oil.” [more]

Why fresh water shortages will cause the next great global crisis



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