Articles tagged with Water Supply
Researchers argue that policymakers in Colombia can adopt a similar cooperative strategy to solve the country's current water management crisis. The pre-Hispanic field systems of La Mojana cover an astonishing 500,000 hectares and were likely built by local communities in a short period of time through cooperation.
Climate change will exacerbate water scarcity, not just due to reduced supply, but also due to poor quality, affecting different sectors differently. Sub-Saharan Africa and the Middle East face particularly challenging prospects, with increased demand for clean water by 1225%.
Researchers used Landsat thermal infrared imagery to study river temperatures over 250 dams in the US, finding temperature differences in 71% of observations and varying impacts based on dam type and season. This new approach can help better understand freshwater ecology and water resource management.
Two Lehigh University AI projects have been selected for funding from the Department of Energy's Genesis Mission. The RIVER-AI project will improve flood- and water-level prediction, while the REACT project aims to accelerate reactor-scale fusion energy by developing an AI-enabled digital twin. These awards strengthen Lehigh University...
A new study from the University of Washington highlights the potential consequences of losing roadless protections on rivers and drinking water supply. The study found that over 80,000 miles of rivers receive some protection from the rule, reaching 25 million people across the country.
A Stanford-led study models how climate change and infrastructure investment can compound an affordability crisis, leading to near doubling of median water bills in cities like Santa Cruz. The research warns that even resilient cities may become vulnerable to water affordability issues over time.
A recent study published in PLOS Water revealed evidence of contamination in the tap water of Austin's Colony neighborhood, with some samples exceeding state regulatory standards for lead, arsenic, and other contaminants. The contamination appears to happen after the water is mixed together in the neighborhood's plumbing system.
A new UN report details the environmental costs of artificial intelligence, including its burgeoning electricity use, carbon emissions, water footprint, and land occupation. The investigation finds that AI's expansion involves significant energy consumption, leading to substantial CO2, water, and land footprints.
A recent study published in Nature Food found that people without access to clean drinking water are more likely to experience food insecurity and food safety threats. The research analyzed survey data from over 124,000 respondents across 121 countries and highlights the urgent need for coordinated global action to address these issues.
Researchers at the University of Rochester developed a solar-thermal desalination process that produces fresh water in an energy-efficient way, eliminating brine and requiring no chemical additives. The technology extracts nearly 100% of salts in solid form, producing table salt and precious minerals like lithium.
A study by Dartmouth researchers shows that annual rainfall is increasingly concentrated into bigger and wetter storms with longer dry periods in between. This means less water is available for land, soil can only absorb so much at once, and what's not soaked up evaporates more readily.
A new UN report reveals that poor water quality is closely linked to poverty and gender inequality in the Global South. The study finds that 84 countries face a combination of unsafe drinking water, limited financial resources, and gender inequality, affecting nearly 2 billion people.
University of Missouri researchers developed an irrigation strategy that allows farmers to conserve water while maintaining crop quality. By tailoring water amounts based on plant growth stages, farmers can reduce water usage and costs.
A recent study reveals that over-abstraction of groundwater and rising sea levels are causing significant changes in coastal groundwater levels globally. The study, which analyzed data from approximately 480,000 wells, found that more than 20% of coastal areas showed significant changes in groundwater levels between 1990 and 2024.
A new study found that websites providing PFAS information, including government and news sources, often fail to provide actionable advice on reducing exposure. The researchers recommend clear language about known threats and improved depiction of audience susceptibility levels to effectively communicate with the public.
A new study by PSU researchers found that wildfires can intensify midwinter rain-on-snow events, leading to rapid snowmelt and increased flood risk. This threatens the region's critical seasonal water storage, refilling reservoirs and producing hydroelectric power.
The MountAInWater project uses a unique combination of field work, modeling, and AI to assess climate change impacts on mountain water supplies and identify potential tipping points. The global reanalysis will provide crucial resources for managing future water security challenges.
Forest thinning found to improve wildfire risk reduction and hydrological resilience, increasing snowpack depth by 30% on north-facing slopes. The treatment recovered about 12.3 acre-feet of snow-stored water per 100 acres, equivalent to roughly 15 Olympic swimming pools per square kilometer.
A new study from Chalmers University finds that local water supply is critical to the success of Europe's hydrogen initiative, with some regions facing severe water shortages if production is not planned carefully. The research suggests that areas like Sweden's Sörmland and Roslagen could be hard-pressed even without hydrogen production.
A recent study from the University at Buffalo has found that cigarette filters release up to two dozen microfibers upon first contact with water, posing a significant threat to wildlife and human health. The researchers estimated that over 71 million to 1.4 billion cigarette butt microfibers are released into New York waters every day.
The US has more than 4 million miles of rivers, but existing regulations only account for less than 20% of total river length. Freshwater conservation strategies have historically focused on land use and development, leaving gaps in protection measures for lakes, rivers, and wetlands.
A nationwide study found that water treatment methods using chlorine as a primary disinfectant increase the risk of Legionnaires' disease. Chlorine used as a secondary disinfectant also increases disease rates, whereas monochloramine reduces the risk.
A study analyzing over 100 cities in Asia, Africa, and Latin America found that compact urban planning is crucial for delivering water and sanitation to growing populations. The research suggests that if cities spread outward rather than building more densely, access to clean water and basic sanitation could be significantly impacted.
A new study by Montana State University scientists explores elevation-dependent changes in climate, including variations in precipitation, surface albedo, and air temperature trends across mountain ranges globally. The findings have direct implications for water availability and use in regions like Montana.
The study found that more than half of the water consumed in the basin is used unsustainably, with only 48% naturally replenished each year. The researchers suggest adopting deficit irrigation practices and repurposing farmland for habitat restoration or solar farms to address the crisis.
A new study found the Rio Grande basin is severely depleted, with only half of used water being replenished by natural processes. The primary cause of overconsumption is irrigated agriculture, particularly cattle-feed crops like alfalfa and grass hay.
A McGill University-led research team has demonstrated the feasibility of thermally driven reverse osmosis (TDRO) for desalinating seawater, utilizing low-grade heat from solar thermal and geothermal energy. The cost-effective technique could improve access to water and increase sustainability in infrastructure.
A new study reveals that widely cited statistics on global water and food security are based on weak evidence and poorly connected to current data. The findings suggest that irrigation's role in global food and water security is highly ambiguous, ranging from 18% to 50%, and its share of global freshwater withdrawals is uncertain.
Irrigation expansion has increased water losses from land through evapotranspiration, depleting freshwater resources in hot spot areas. In regions like South Asia, climate change and irrigation exacerbate humid-heat stress risks.
A new study reveals that global warming is accelerating the risk of multi-year droughts leading to extreme water scarcity. The frequency of Day Zero Droughts will increase sharply over the coming decades, affecting 750 million people globally by the end of this century.
A study by Brazilian scientists predicts that climate change will significantly impact the country's underground reservoirs, reducing groundwater supply across Brazil. This will increase the risk of water shortages in several regions, especially the Southeast and South.
As Arctic permafrost thaws, geochemical reactions unleash metals like cadmium, harming fish and disrupting ecosystems. The Salmon River's transformation poses indirect threats to Indigenous communities and other species.
Researchers warn of declining access to safe and reliable water in the US, urging better tracking tools and policy reforms. A new tool, Household Water Insecurity Experiences (HWISE), measures water insecurity in over 1,000 households across the country.
An international team of researchers has tracked changes in over 114,000 rivers in High-mountain Asia, finding nearly 10% of them saw an increase in flow from glacial ice melt. This shift poses a challenge for the region's energy future, particularly hydroelectricity generation, due to increased sediment and reduced reservoir capacity.
Researchers have identified 21 new PFAS chemicals in Sydney's tap water, exceeding previous estimates. The findings highlight the need for broader monitoring and underscore the persistence of 'forever chemicals' in human systems.
A new Virginia Tech study reveals that toxic well water primarily affects household pets, with 64% of dog drinking water samples containing high levels of potentially toxic heavy metals. Researchers found a correlation between untreated well water and poor health in dogs, highlighting the need for households to test and treat their water.
A recent study led by WVU student Isabella Tuzzio found microplastics in every fish sampled from seven central Appalachian streams. The researchers discovered significant environmental risks and potential human health hazards due to the accumulation of microplastics in the food chain.
New research from Tulane University finds that global riverine mercury pollution has more than doubled since the pre-industrial era, with primary drivers including wastewater discharge, soil erosion, and industrial activities. This increase poses significant health risks to humans and wildlife through consumption of contaminated fish.
Researchers have developed innovative composite nanotechnology that removes excess nutrients from wastewater, converting them into agricultural fertilizers. The technology reduces ammonia and phosphate concentrations by up to 60% and 91%, respectively, effectively preventing harmful algal blooms and associated toxins.
Scientists discovered that applying pressure to a copper-chromium Prussian blue analog can expel stored water, forming droplets. Approximately 240g of water was obtained per 1kg of the crystal. This technology has potential for arid environments and water resource reuse.
A new study found that PFAS exposure remains a concern for California adults, with drinking water, seafood, eggs, and brown rice identified as contributors. While dietary associations are lower than previous studies, the findings highlight the need to regulate PFAS in drinking water.
A study by researchers at the University of Texas at Austin and collaborators in Arizona and Colorado found notable groundwater gains in Central Arizona despite long-term water stress. The policies have helped bank over 25 cubic kilometers of groundwater from 1989-2019, but the Colorado River faces uncertain future due to climate change.
Shrinking Andean glaciers pose a significant threat to the water supplies of 90 million people, with thinning rates 35% faster than the global average. Effective management of water resources and drastic reduction in carbon emissions are crucial to mitigate this impact.
Experts at Flinders University are calling for a new approach to water security on Pacific islands, where rising sea levels threaten local water supplies. Infiltration galleries, which extract fresh groundwater from shallow depths, may provide a solution, but more research is needed on their optimal design and performance.
Researchers have developed a new AI tool that uses sensors and real-time data to predict water quality across the US. This tool can be applied nationwide, benefiting communities by providing water quality forecasts, streamlining operations, and informing strategies for managing turbidity in basins worldwide.
Global glacier mass loss has increased by 36% since 2000, with 6,542 billion tons lost between 2000 and 2023. This results in an 18 mm annual contribution to global sea-level rise, making glaciers the second-largest contributor after ocean warming.
A study of 17,972 wells in Brazil reveals that more than half of the country's rivers could suffer reduced flow due to groundwater seepage. The São Francisco River basin and MATOPIBA region are particularly critical areas, with intensive agricultural activity and climate change exacerbating the problem.
Since the turn of the millennium, glaciers worldwide have lost around 273 billion tonnes of ice per year, corresponding to about five and a half times the volume of Lake Constance. The loss of ice from glaciers has led to a rise in sea level of 18 millimetres, making it the second strongest driver of sea level rise after ocean warming.
A survey conducted by Professor Takahiro Endo at Osaka Metropolitan University found that Hiroshima Prefecture provided a free water inspection service for well owners after the 2018 floods, promoting their initiative to open inspected wells to the public. This collaborative effort supplemented local governments' emergency water supply...
A simulation mapping underground water on a continental scale reveals that rainfall and snowmelt flow much farther underground than previously thought. The study also shows that more than half of the water in streams originates from aquifers previously believed to be too deep for streams.
Early online research reveals associations between snowmelt timing, wildfires in Alaska, and rapidly intensifying tropical cyclones. The impact of climate patterns on extreme weather events is a growing concern.
The 105th Annual Meeting of the American Meteorological Society will address key issues in weather, water, and climate. The meeting features a Presidential Forum on physical, social, cultural, and economic impacts of climate change, with experts from the region of the Mississippi River Delta.
New research maps 35 years of river changes on a global scale, revealing 44% of downstream rivers saw decreases in water flow, while 17% of upstream rivers saw increases. This shift has significant implications for flooding, ecosystem disruption, and freshwater supplies.
A new report assesses water resources in the southern US states, finding that forestry best management practices can mitigate climate and land use effects on water quality. The study projects future scenarios of water stress due to extreme precipitation events, emphasizing the importance of adaptive management.
Researchers have developed a liquid moisture adsorbent that can efficiently harvest water from the air at near ambient temperatures. The technology, which uses random copolymers of polyethylene glycol and polypropylene glycol, has the potential to provide clean drinking water in arid regions and during disasters.
A new study warns that climate change's impact on water resources will significantly increase the cost of achieving zero-emission grids by 2050. The required investments in generation and transmission infrastructure are expected to be massive, with up to 139 gigawatts of power capacity needed in the Western United States.
A new study reveals that the San Joaquin Valley in California has been sinking at an average rate of nearly an inch per year between 2006 and 2022. The researchers estimate that the land sank by over 12 inches during the four-year gap in satellite data, highlighting the urgent need for mitigation strategies.
Researchers developed a machine learning framework that predicts inorganic pollutants in groundwater based on limited water quality samples. The model suggests 15% to 55% of sites may truly be risk-free, identifying critical gaps in groundwater quality datasets.
According to a new USGS study, approximately 71-95 million people in the Lower 48 states may rely on groundwater containing detectable concentrations of PFAS for their drinking water supplies. The predictive model helps understand the potential for PFAS contamination and informs strategic planning for water resources.
Plant guard cells use calcium signals to regulate stomatal movement in response to environmental stimuli. By counting up to six consecutive calcium transients, guard cells can close their stomata and conserve water.