News
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More than half of Brazil’s rivers are at risk of reduced flow due to water seeping into underground aquifers, a study warns. This is of great importance for Brazil, which could face increasing water stress with serious consequences for water supply, food security and ecosystems. The findings also serve as... read more...
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A recent study has revealed that about 17 million people across the world are at risk of gastrointestinal problems due to excessive sulfate levels in groundwater. This is shown on the study’s high-resolution global groundwater sulfate distribution map. The study recommends incorporating sulfate into global water safety management practices. The... read more...
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A relatively small amount of groundwater trickling through Alaska’s tundra is releasing huge quantities of carbon into the ocean, where it can contribute to climate change, according to new research. As permafrost continues to thaw under climate change, the amount of freshwater making its way to the sea underground will... read more...
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To understand the state of groundwater in India, the Central Ground Water Board (CGWB) assessed more than 15,000 groundwater samples from across the country in 2023. Analysis revealed that India’s groundwater contains a range of pollutants in excess of permissible limits. This contamination is driven by both natural geochemical processes... read more...
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Extreme climate events endanger groundwater quality and stability when rain water evades natural purification processes in the soil. This was demonstrated in long-term groundwater analyses using new analytical methods, as described in a recent study in Nature Communications. As billions of people rely on sufficient and clean groundwater for drinking,... read more...
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RAF bases are hotspots of toxic “forever chemical” pollution in water, analysis of Ministry of Defence documents has revealed. Some of the highest concentrations of these chemicals in British drinking water sources are near RAF bases, official sampling results obtained by the Guardian and Watershed Investigations show. Find out more... read more...
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Researchers have created a simulation that maps underground water on a continental scale. The results show the unseen path that a raindrop or melted snowflake takes before re-emerging in freshwater streams, following water from the land surface to depths far below and back up again, emerging up to 100 miles... read more...
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India’s underground reserves of water have been depleted by intensive farming practices influenced by subsidies, according to recent research. Although well-intentioned, these subsidies can lead to harmful outcomes. Since the 1980s, groundwater levels have plunged by more than 8 metres on average, with significant over-production of water intensive crops. Find... read more...
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The animators behind Wallace and Gromit will create a short film for Lincolnshire Count Council to warn people about groundwater flooding. The film is being produced as part of Project Groundwater, a government-funded scheme to protect areas at risk of this type of flooding – where water from underground rises to... read more...
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Groundwater contamination is a pervasive challenge that has dire consequences for health, education, and economic outcomes. In India, a country where 67% of groundwater is already contaminated with substances such as arsenic, fluoride, and nitrates, the stakes are alarmingly high. Recent research has revealed the devastating effects of groundwater contamination... read more...
National Chapters
Local professional, scientific and social benefits and promotion of sustainable groundwater use
Commissions & Networks
Contributing to the science of groundwater and undertaking outreach, education and training
Publications
Information about IAH’s Hydrogeology Journal and books
Education
Resources, materials and links for the general public, students and professionals
