News
-
Karst regions, which cover about 15% of the Earth’s land surface, provide freshwater for about a quarter of the world’s population. Despite their importance, these areas are prone to frequent and often unnoticed groundwater flooding. These hidden floods pose significant risks, yet they have historically been neglected by the public,... read more...
-
Groundwater volumes across Africa are estimated to be equivalent to thousands of years of average total flow of the Nile River. For places like the Horn of Africa, which is blighted by recurrent drought, access to this water could be a game-changer for resilience and water access. Accessing these vast... read more...
-
Large parts of Iran are affected by groundwater loss and land subsidence. Comparison of geological maps, information on groundwater reservoirs and data from the GRACE satellite mission reveals a concerning trend: numerous Iranian provinces face the growing risk of irreversible depletion and damages to their groundwater reservoirs, with some of... read more...
-
A recent study highlights the perilous situation of oases around the world. Once seen as places of imagination, today they support important habitats and water sources for arid regions, which deserve sustainable development. Despite covering only a small fraction, about 1.5%, of our planet’s land area, oases play a disproportionately... read more...
-
Ever since the Spanish conquistadors drained Lake Texcoco to make way for more urbanization, the land has been gradually compacting under the weight. Mexico City is sinking up to 20 inches a year, unleashing havoc on its infrastructure. “When you’re here in the city, you get used to buildings being... read more...
-
Major cities across eastern China are sinking due to groundwater extraction and the weight of buildings, potentially exposing millions of people to flooding and damage in the next 100 years. The affected cities, which include Beijing and Tianjin, are concentrated in the eastern part of the country and along the coast.... read more...
-
A new study has presented almost 100,000 estimates of groundwater recharge rates across Australia, by far the largest known database of its kind. The study aims to aid water resource managers and improve their knowledge of how water interacts with and moves through the earth. Find out more https://www.cdu.edu.au/news/new-study-shows-how-quickly-surface-water-moves-groundwater-reservoirs-across-australia read more...
-
Potentially toxic chemicals called PFAS (perfluoroalkyl and polyfluoroalkyl substances) are found in surface and groundwaters around the world at levels much higher than many international regulators allow, a new study found. Called “forever chemicals” because they fail to break down fully in the environment, PFAS have been used since the 1950s... read more...
-
The geological and hydrogeological conditions in Hungary make geothermal energy a suitable alternative to gas heating in Hungary. Hungary’s geothermal heat flow, or simply put, the intensity of the heat escaping from the earth’s interior, is excellent by European standards. Some form of shallow or deep geothermal use is possible... read more...
-
The 2024 edition of the United Nations World Water Development Report highlights how developing and maintaining water security and equitable access to water services is essential to ensuring peace and prosperity for all. Equitable access to water resources, to safe and affordable water supply and sanitation services, and to the multiple... 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
