Fresh Thinking: Freshwater Science Is Being Pioneered in Arizona

Fresh Thinking: Freshwater Science Is Being Pioneered in Arizona

About 71 percent of the Earth is covered by water, and most of that is ocean. Only 2.5 percent is fresh water, and only a fraction of that—1 percent—is easily accessible. The world’s population of 7.6 billion is expected to grow to 9.8 billion by the year 2050, which means by that year, more than half the people on Earth will live in water-stressed areas. The demand for potable and … [more…]

Extreme water stress affects a quarter of the world’s population, say experts

Extreme water stress affects a quarter of the world's population, say experts

17 countries including India, home to 1.3 billion people, are identified as having ‘extremely high’ water stress. Photograph: Pratik Chorge/Hindustan Times/Getty Images

A quarter of the world’s population across 17 countries are living in regions of extremely high water stress, a measure of the level of competition over water resources, a new report reveals.

Experts at the World Resources Institute (WRI) warned that increasing water stress could lead to more … [more…]

Dwindling groundwater, ever-deeper wells could spell trouble for Arizonans

Dwindling groundwater, ever-deeper wells could spell trouble for Arizonans

Araceli Silva moved to her colonia near Yuma decades ago 27 years ago. She’s struggled with her wells, which have run dry more than once. A new study finds that wells that bring groundwater to the surface are being dug deeper to tap dwindling aquifers. (Photo by Maria Esquinca/News21)

PHOENIX – Wells are drying up because groundwater is being depleted, and that affects food production and access to drinking water. … [more…]

IAEA Develops New Method to Track Sources of Water Pollution

IAEA Develops New Method to Track Sources of Water Pollution

Photo: Excessive nitrate in lakes, seas and rivers can increase algae growth that can lead to toxic blue-green blooms. The IAEA, in collaboration with the University of Massachusetts, has developed an innovative method to trace the origin of nitrate pollution in water. (Photo: L. Wassenaar, IAEA)

The International Atomic Energy Agency (IAEA), in collaboration with the University of Massachusetts, has developed an innovative method for tracing the origin of nitrogen … [more…]

The Colorado River: A Lifeline Running Dry

Video frame: Colorado River - Resource Running Dry?

A drought in the western United States created a battle over resources, as private landowners compete with the public over access to freshwater supplies.

In April of 2015, California’s governor, Jerry Brown, announced a series of mandatory restrictions, forcing residents to reduce their water usage by 25 percent in the coming year. But despite playing a massive role in depleting local water supplies, the state’s powerful agriculture industry has been … [more…]