• Climate & water

    Rising temperatures worldwide are changing not only weather systems, but - just as importantly - the distribution of water around the globe, according to a new study. This study marked the first time scientists have used specific measurements to demonstrate how water sources are changing, especially in the northeastern United States.

  • Water security

    Water crises seem to be everywhere. In Flint, the water might kill us. In Syria, the worst drought in hundreds of years is exacerbating civil war. But plenty of dried-out places aren’t in conflict. For all the hoopla, even California hasn’t run out of water. There’s a lot of water on the planet. What is critical is managing water to meet current and future demand. Biophysical indicators, such as the ones we looked at, can’t tell us where a water shortage is stressful to society or ecosystems, but a good biophysical indicator can help us make useful comparisons, target interventions, evaluate risk and look globally to find management models that might work at home.

  • Water security

    Phosphorus is a crucial nutrient regularly applied to crops such as corn and soybeans to help them grow efficiently. However, excess phosphorus can be carried by rainwater runoff into lakes and streams, creating potential problems for aquatic environments and the ecosystem services they provide to humans. To combat this problem, researchers are trying to better understand two groups of bacteria that could affect whether phosphate is retained in the soil or becomes mobile and gets into the water.

  • Coastal infrastructure

    Groundwater extraction and other land water contribute about three times less to sea level rise than previous estimates, according to a new study. The study does not change the overall picture of future sea level rise, but provides a much more accurate understanding of the interactions between water on land, in the atmosphere, and the oceans, which could help to improve future models of sea level rise.

  • Water security

    More than 748 million people around the world lack access to safe drinking water and basic sanitation. Water-borne infections are among the global causes for mortality, especially in children under age of five, and viruses are among the most notorious water-borne infectious microorganisms. They can be both extremely resistant to disinfection and difficult to remove by filtration due to their small size. Scientists have developed a simple paper sheet which can improve the quality of life for millions of people by removing resistant viruses from water.

  • Water security

    Tragedies like the E. coli outbreak in Ontario’s Walkerton in May 2000 could be averted today with a new invention by researchers at York University that can detect the deadly contaminant in drinking water early. Anew technology has cut down the time taken to detect E. coli from a few days to just a couple of hours.

  • Water security

    If past patterns of California land-use change continue, projected water needs by the year 2062 will increase beyond current supply. If historical trends of land use changes to or from urban, agricultural or other uses continue, the result will be increased water-use demand beyond what existing supplies can provide. Large uncertainties associated with weather and climate variability have the potential to exacerbate the problem.

  • Water security

    California announced on Wednesday that it was rolling back mandatory water conservation rules which were put in place at the height of a 4-year drought. The decision to roll back the restrictions came after water conditions in many parts of the state have improved as a result of a wet winter.

  • Water security

    As part of an effort to preserve Louisiana’s fresh water resources, RTI International worked with The Nature Conservancy (TNC) to develop two online tools, released today, that offer a first-of-their-kind look at how Louisiana’s waters interact with each other. These tools will help fishermen, oystermen, planners, decision makers, and all Louisianans understand the state’s unique water flow patterns.

  • Water security

    In his 2014 book, Water 4.0, UC Berkeley environmental engineer David Sedlak identifies four “revolutions” in the development of urban water systems. Sedlak says that we need a fourth revolution now. Soaring urban populations and a changing climate create chronic water shortages in some cities and too much water in others. Some contaminants may pose hazards in extraordinarily small concentrations. And aging pipe networks threaten the health of entire communities, as seen this year in Flint, Michigan.

  • Water security

    Moving to bolster California’s climate and drought resilience, Governor Edmund G. Brown Jr. the other day issued an executive order that builds on temporary statewide emergency water restrictions to establish longer-term water conservation measures. The governor’s office says that Californians have responded to the call to conserve water during the drought by dialing back sprinklers, replacing lawns, fixing leaky faucets, and installing more efficient toilets and washing machines. Between June 2015 and March 2016, Californians reduced water use by 23.9 percent compared with the same months in 2013 — saving enough water to provide 6.5 million Californians with water for one year.

  • Water security

    Water is one of our nation’s most important natural resources, one that is long been considered inexhaustible. Yet changes in land use, climate, and population demographics are placing unprecedented demands on America’s water supplies. As droughts rage and aquifers dwindle, people may wonder: Is there enough water to meet all our needs?

  • Water security

    Water scarcity, exacerbated by climate change, could cost some regions up to 6 percent of their GDP, spur migration, and spark conflict, according to a new World Bank report released the other day. The report says the combined effects of growing populations, rising incomes, and expanding cities will see demand for water rising exponentially, while supply becomes more erratic and uncertain.

  • Infrastructure

    How do you make sure aging bridges which are vital links in New York City’s transportation network are safe or keep the city’s sewer system from breaking down? These are among the questions that occupy Columbia University researchers, who have installed sensors to analyze vibration on some of the city’s bridges and in landmark buildings and museums, and have focused on the functioning of the city’s water system.

  • Water safety

    Corrosion-related damage costs more than three percent of the United States’ Gross Domestic Product (about $503.1 billion, going by 2013 numbers). With documented public water problems in Flint, Michigan, and Hoosick Falls, New York, caused by corrosion, understanding how copper is affected at the atomic level is critical to avoiding problems in future pipes.

  • Water security

    One of the primary concerns of those who oppose the development of shale gas by hydraulic fracturing is that creation of new fractures in the earth could cause fracking fluids to leak into, and contaminate, underground freshwater aquifers. Potential future fracking activity in the United Kingdom is unlikely to pose a pollution danger to overlying aquifers, new research from a leading academic suggests.

  • Emerging threats

    Science can flourish when experts disagree, but in the governmental realm uncertainty can lead to inadequate policy and preparedness. When it comes to climate change, it can be OK for computational models to differ on what future sea levels will be. The same flexibility does not exist for determining the height of a seawall needed to protect people from devastating floods. For the first time in the climate field, researchers have combined two techniques long used in fields where uncertainty is coupled with a crucial need for accurate risk-assessment — such as nuclear energy — in order to bridge the gap between projections of Earth’s future climate and the need to prepare for it.

  • Emerging threats

    A rising sea level — for a country like Vietnam, with 2,000 miles of coastline — presents a major environmental and food security challenge, especially in the Mekong River Delta region where 22 percent of the population lives and about half of the country’s food is produced.

  • Water security

    New research demonstrates that groundwater quality changes alongside the expansion of horizontal drilling and hydraulic fracturing but also suggests that some potentially hazardous effects may dissipate over time. The research is the first to analyze groundwater quality in the Cline Shale region of West Texas before, during, and after the expansion of hydraulic fracturing and horizontal drilling.

  • Emerging threats

    European researchers have found substantially different climate change impacts for a global warming of 1.5°C and 2°C by 2100, the two temperature limits included in the Paris climate agreement. The additional 0.5°C would mean a 10-cm-higher global sea-level rise by 2100, longer heat waves, and would result in virtually all tropical coral reefs being at risk.