The UN defines a region as water stressed if the amount of renewable fresh water available per person per year is below 1,700 cubic meters. A region is experiencing water scarcity if the figure is below 1,000 cubic meters, and below 500 amounts to “absolute water scarcity.” Water scarcity driven by overuse, poor land management, and climate change, is one of the causes of wars and terrorism in the Middle East and North Africa. If governments fail to respond, shortages of major resources, including food and energy, will cause greater insecurity and conflict.

Population growth could cause global demand for water to outpace supply by mid-century if current levels of consumption continue. It would not, however, be the first time this has happened, a new study finds. Using a delayed-feedback mathematical model which analyzes historic data to help project future trends, the researchers identified a regularly recurring pattern of global water use in recent centuries. Periods of increased demand for water — often coinciding with population growth or other major demographic and social changes — were followed by periods of rapid innovation of new water technologies that helped end or ease any shortages. The researchers’ conclusions: Technological advances will be needed in coming decades to avoid water shortages.

Over the past decades, America’s water infrastructure has deteriorated, lacking the much needed investment to secure and ensure the sustainability of a vital natural resource. An analysis of U.S. infrastructure investment shows that spending on capital improvements to U.S. ports, for example, has averaged $10 billion annually over the last ten years. By 2025, that figure will reach $20 billion annually. In contrast, U.S. capital investments in water supply and wastewater treatment was roughly $2 billion annually over the last decade. It is projected to reach just $3 billion annually by 2025. “Our water infrastructure is in a state of crisis that is only exacerbated by the effects of climate change, growing populations and demand. The longer we ignore the problem, the more it costs us,” said Senator Ben Cardin (D-Maryland).

Studies of water use from 2005 to 2010 show that Utahans used more water for public supply than any other state, despite Utah being ranked the second most arid within the country. Significantly lower levels of Utah snowpack this winter are the biggest climate challenge now facing Salt Lake City: The Northeastern part of the country is inundated with record amounts of snow, but Salt Lake City’s snowpack is 69 percent below the 30-year average.

About 115 million people — more than one-third of the U.S. population — rely on groundwater for drinking water. As the U.S. population grows, the need for high-quality drinking-water supplies becomes even more urgent. The recently completed USGS’s national summary report of the quality of the Nation’s groundwater is now available online. Nine associated reports (USGS circulars) detail regional-scale assessments of groundwater quality in about thirty of the most heavily used principal aquifers across the United States.

High concentrations of dissolved iron from abandoned coal mines in Pennsylvania have been contaminating some of the Pennsylvania’s streams and rivers for many years, potentially affecting aquatic habitats and drinking water for millions of residents. To combat this problem, a team of Penn State researchers has proposed a method to eliminate much of the iron before it reaches the waterways.

The fight against antibiotic-resistant bacteria — so-called “superbugs” — is a huge challenge, one that the World Health Organization has described as a grave global problem. The problem of antibiotic resistance is being exacerbated worldwide by the pollution of waste water with leftover drugs, providing breeding grounds for resistant bacteria and their genes. The problem can persist for years, constantly refreshed by new discharges of both drugs and of resistant bacteria themselves, shed by people and animals. It is time for the health and water industries to strike a bargain. Health professionals need to be aware of the need for pharmaceuticals to be managed as organic and persistent pollutants. Tackling hot spots in “source control” such as hospitals and clinics could make significant inroads on the amount of waste drugs entering treatment plants. The water industry should ensure that treatment plants are operating under optimal conditions and that the older ones are either replaced or upgraded.

A new technology offers a positive environmental impact by slowing the evaporation of water from bodies of water such as mining tailings ponds and reservoirs, while simultaneously generating solar energy. The invention, called Hexocover, consists of floating hexagonal plastic panels that sandwich 4-inch balls linked together to form a cover to prevent evaporation. The panel design addresses the need for mobility through the inclusion of a propulsion system as well as GPS, so the panels can be built to be remotely configurable. Further, when configured with solar cells, the panels can generate electricity.

On 3 July 2014, DHS, responding to a Freedom of Information Act(FOIA) request on Operation Aurora, a malware attack on Google, instead released more than 800 pages of documents related to the Aurora Project, a 2007 research effort led by Idaho National Laboratoryto show the cyber vulnerabilities of U.S. power and water systems, including electrical generators and water pumps. The research project found that once these infrastructure systems are infiltrated, a cyberattack can remotely control key circuit breakers, thereby throwing a machine’s rotating parts out of synchronization and causing parts of the system to break down.