• Water securityOilfield Water Can Safely Be Reused for Irrigation in California

    Reusing low-saline oilfield water mixed with surface water to irrigate farms in the Cawelo Water District of California does not pose major health risks, as some opponents of the practice have feared, a new study finds.

  • Water securityComparing Water Risk Tools for Companies and Investors

    Faced with worsening water security across the globe, companies and investors are increasingly concerned about the water risks faced by their operations, supply chains and investments – and looking for tools to help to assess these risks. New report details similarities and differences between three leading water tools.

  • Water securityChanges in Snowmelt Threaten Farmers in Western U.S.

    Farmers in parts of the western United States who rely on snowmelt to help irrigate their crops will be among the hardest hit in the world by climate change, a new study reveals. The study pinpointed basins globally most at risk of not having enough water available at the right times for irrigation because of changes in snowmelt patterns. Two of those high-risk areas are the San Joaquin and Colorado river basins in the western United States.

  • Food securityIrrigation Expansion Could Feed 800 Million More People

    Agriculture, which accounts for 90 percent of global water use, is the largest driver of water scarcity worldwide, and it is often the most vulnerable and disadvantaged populations that suffer the severest consequences. A new study suggests that there is enough locally available water to expand irrigation over 140 million hectares of agricultural lands.

  • Climate challengesMore Accurate Climate Change Model Reveals Bleaker Outlook on Electricity, Water Use

    By 2030, global warming alone could push Chicago to generate 12 percent more electricity per person each month of the summer. If the city generated any less electricity, it would be risking a power shortage that may require drastic measures to avoid rolling blackouts, according to projections from a model designed by Purdue University researchers.

  • Water securityArid American West is Moving East as Groundwater Depletes

    Loss of groundwater may accelerate drying trends in the eastern United States, according to research that applied supercomputing to create an in-depth model of how groundwater will respond to warming. Even under modest climate warming scenarios, the continental United States faces a significant loss of groundwater – about 119 million cubic meters, or roughly enough to fill Lake Powell four times or one quarter of Lake Erie.

  • Water securityOn-Demand Drinking Water from Air

    Providing potable drinking water to deployed troops operating in low resource or contested environments is no simple undertaking. Logistics teams face great risk delivering water and often incur what would otherwise be preventable casualties. Low-power extraction technologies could capture potable water from ambient arid air, giving deployed troops greater mission flexibility.

  • Water securityAdding Hard-to-Reach Water to the Water Supply

    More than 20 percent of the world’s population are dependent on karst groundwater. In these regions, large amounts of water seep into the porous rock and are available at great depths only. Moreover, karst water is susceptible to pollution. Use for sustainable water supply is a challenge in threshold and developing countries.

  • Water securityUsing the Internet of Things for Water Security

    A cluster of internet-enabled devices, including a water-flow sensor, pH sensor, ultrasonic sensor, and “PIC” microcontroller, may be used together as a watchdog system for water quality.The simple and low-cost system being developed by the team of researchers in India makes water quality assessment and water security widely available without the need for sophisticated technical knowledge.

  • Water securityPlants Demand More Water as Climate Warms, Leaving Less for People

    As climate changes, plants in North America, much of Eurasia, and parts of central and South America will consume more water than they do now, leading to less water for people, according to a new study. The research suggests a drier future despite anticipated increases in precipitation in populous parts of the United States and Europe that already face water stresses.

  • African securityTensions Rise between Egypt and Ethiopia over Nile Dam Project

    Tension is rising between Egypt and Ethiopia over the huge Ethiopian dam project on the Nile. Egypt is worried that the construction of the Renaissance Dam, a $4 billion dollars project launched by Ethiopia in 2012 and scheduled to start operations in 2022, will substantially reduce water flow in the Nile. Egypt depends on the Nile for about 90 percent of its water supply. Egypt insists on a guarantee from Ethiopia that Egypt would receive a minimum of 40 billion cubic meters of water annually, but Ethiopia argues that this would give Egypt an unreasonably large share of the Nile’s water.

  • Water securityNew $100M Innovation Hub for a Secure Water Future

    The National Alliance for Water Innovation (NAWI), which is led by the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab), has been awarded a five-year, $100-million Energy-Water Desalination Hub by DOE (pending appropriations) to address water security issues in the United States.

  • Water securityCalifornia Wildfires Can Impact Water Availability

    In recent years, wildfires in the western United States have occurred with increasing frequency and scale. Climate change scenarios in California predict prolonged periods of drought with potential for conditions even more amenable to wildfires. The Sierra Nevada Mountains provide up to 70 percent of the state’s water resources, yet there is little known on how wildfires will impact water resources in the future.

  • Perspective: Water woesBottled Water Is Sucking Florida Dry

    Florida has the largest concentration of freshwater springs in the world, but they are being devastated by increasing pollution and drastic declines in water flow. Some springs have dried up from overextraction; others have shown signs of saltwater intrusion and harmful algae blooms. The answer to this problem is simple: No more extraction permits should be granted, and existing permits should be reduced with the goal of eliminating bottled water production entirely in Florida. But that simple solution is not being implemented. In the next few months, Nestlé, the largest bottled-water company in the world, is set to renew its permit at Ginnie Springs, one of the most popular recreational attractions along the Santa Fe River,” Sainato and Skojec write. “The permit allows Nestlé to take one million gallons per day at no cost, with just a one-time $115 application fee.”

  • Perspective: Water woesThe Water Wars Are Here

    Everyone remembers the scene in Chinatown when Jack Nicholson almost gets his nose sliced off, but many do not recall what the dispute was about. It wasn’t drug smuggling or gun running that got Nicholson’s character slashed. It was water rights. Since the film was released in 1974, the question of who will get the limited water in the American West, particularly the all-important flow of the Colorado River, has grown even more contentious. Dystopian novels and movies predict a future in which people fight it out for every last drop of water to quench the thirst of expanding cities, parched agriculture, and wasteful suburban grass lawns. But the future is already here.