News
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More than two decades of data have been used to determine a gradual loss of both surface and subsurface supplies across swathes of the continent. Scientists have determined a sharp decline in total water storage in southern and Central Europe, including Spain, Portugal, Italy, France, and South East England, among... read more...
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The 50th congress of the International Association of Hydrogeologists (IAH) was hosted in Cape Town, South Africa, with the theme “Groundwater: A Matter of Scale”. This topical collection https://link.springer.com/collections/ecggjaeigi comprises seven articles selected for their relevance and contribution to the diverse and impactful groundwater-related work conducted in South Africa. These... read more...
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The latest edition of News & Information Magazine is out now, including: A message from our Secretary General IAH Awards Lección Magistral Emilio Custodio Hydrogeology Journal World Water Day 2026 IAH Commissions, Networks and National Chapters And more! We hope you have a lovely festive season! read more...
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Indigenous people have coexisted with Australia’s vast and ancient groundwater systems for thousands of generations. Indigenous knowledge systems embody many thousands of years of groundwater monitoring. This includes tracking spring behaviour and soil moisture, animal movement and vegetation cues. Their knowledge extends back through deep time, before our current climate... read more...
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A new assessment has documented 684 sinkholes across Konya, Karaman and Aksaray, offering the most comprehensive picture to date of how climate change, prolonged drought and uncontrolled groundwater use are reshaping the Konya Closed Basin in Türkiye. Find out more https://www.turkiyetoday.com/lifestyle/konya-closed-basin-records-684-sinkholes-as-turkiye-updates-regional-risk-maps-3211133?s=1 read more...
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A world-first study of New Zealand’s aquifers reveals that some wells contain groundwater that is 40,000 years old with scientists warning they’ll be put at risk if too much water is taken. A series of maps and models was developed as part of a six-year research programme, which identified the... read more...
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The Earth holds approximately 20 million cubic kilometres of groundwater, roughly equal to the amount of saline water below the surface. But not all of it is usable: some lies too deep to extract, while other portions are already being tapped faster than they can recharge. Groundwater supplies half the... read more...
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Entire villages along Indonesia’s northern coast are being swallowed by the sea. Semonet in Central Java is one of the clearest examples. Once a thriving fishing community, it’s now completely deserted. Multiple factors are at play: geological and man-made, like groundwater extraction for domestic and industrial use. Climate change, intense... read more...
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Rules and infrastructure aren’t enough to fix groundwater problems on the Mediterranean coast. A study in four areas found that local people must be involved in shaping and testing possible solutions. Find out more https://environment.ec.europa.eu/news/living-labs-show-effective-groundwater-management-needs-more-top-down-rules-and-sanctions-2025-11-06_en read more...
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A major scientific discovery beneath Greece’s seafloor has revealed vast reserves of freshwater stored deep underground. These freshwater reserves stretch from about 20 metres (66 feet) to as deep as 700 metres (2,297 feet) below the seafloor. The discovery sheds new light on how ancient groundwater systems formed — and... 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
