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  • New from IAH Time Capsule Project: interview with Wolfgang Dreybrodt

    The Time Capsule project of IAH is pleased to announce that it has just published a video interview of Wolfgang Dreybrodt. The interview permits knowing better the human perspective in the work of Wolfgang Dreybrodt and the circumstances in which he started to work on karst. We hope that the... read more...

  • Danish Military Accused As Pollution, Cancer-causing Substances Found In Drinking Water

    Harmful compounds from drills held by the Danish Armed Forces have been poisoning the groundwater and the local environment for years. Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) chemicals with values between 100 and 1,000 times above the maximum permissible concentration in groundwater have been discovered at the country’s three current air... read more...

  • The five biggest threats to our natural world … and how we can stop them

    Groundwater extraction: ‘People don’t see it’ From hunting, fishing and logging to the extraction of oil, gas, coal and water, humanity’s insatiable appetite for the planet’s resources has devastated large parts of the natural world. While the impacts of many of these actions can often be seen, unsustainable groundwater extraction could... read more...

  • Ancient groundwater: Why the water you’re drinking may be thousands of years old

    Most water stored underground has been there for decades, and much of it has sat for hundreds, thousands or even millions of years. Older groundwater tends to reside deep underground, where it is less easily affected by surface conditions such as drought and pollution. People today are drilling deeper wells... read more...

  • Researchers Trace Threats to Groundwater in India

    The quality of water and its movement to and from aquifers are changing across India. Studies found increased flow of water from rivers to aquifers, especially during the dry season, but the reverse flow from aquifers to rivers decreased. Elsewhere natural geological processes in the hard Archean granite rocks and... read more...

  • ‘Like a metronome’: stalagmite growth found to be surprisingly constant

    To look inside a stalagmite is to look back in time tens of thousands of years to see how the Earth’s climate patterns have shaped the world we live in today. In a global investigation into the growth properties of stalagmites distributed across the world, scientists found that while growth... read more...

  • Rail construction loses huge volume of bentonite to UK Chalk aquifer

    Vast amounts of bentonite slurry have been lost to the Chalk aquifer during the construction of the high-speed rail link. Monitoring has shown significant effects on pH, turbidity and other water quality parameters. Although long term impacts may be limited, changing climatic conditions could remobilise the lost bentonite causing it... read more...

  • Make a Difference in Groundwater

    São Paulo-Brussels Groundwater Declaration – shared challenges, share the will worldwide! In this year, 2021, when the International Association of Hydrogeologists (IAH) has two international congresses, IAH National Chapters in Brazil and Belgium, along with the IAH Executive Committee, Associação Brasileira de Águas Subterrâneas (ABAS), and Asociación Latinoamericana de Hidrología... read more...

  • “I Know What Will Be Lost”: Ranchers Dispute Best Use Of Groundwater

    In an area of cornfields and oil wells in Wyoming there is also a secret world where cattle have been raised since the late 1800s. Groundwater seeps up to form creeks, essential for growing grass for herds, but climate change has increased the likelihood of disputes over even small water... read more...

  • Punjab groundwater level dips 1m every year

    Punjab Agricultural University research from 1998 to 2018 has found groundwater that was at three to 10 metres has fallen to below 30 metres in two decades. The Punjab government’s push for farm diversification has yielded little result and the pre-monsoon (June) data for 20 years shows the adverse impact... read more...

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