Tag Archives: groundwater

California’s central valley aquifers may be gone in 2030s, Ogallala 2050-2070

Preface. Clearly the human population isn’t going to reach 10 billion or more. California grows one-third of the nation’s food, the 10 high-plains states over the Ogallala about a quarter of the nations food, and exports a great deal of … Continue reading

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Fresh water depletion, contamination, saltwater intrusion, & permanent subsidence

Map of the U.S. showing cumulative groundwater depletion from 1900 through 2008 in 40 aquifers. Source: Groundwater Depletion in the United States (1900-2008), USGS Scientific Investigations Report 2013-5079. Preface. What follows is from: Ayre, J. April 2018. Fossil Water Depletion, Groundwater … Continue reading

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USGS Groundwater Depletion study of Aquifer decline in the United States

Preface. The Ogallala and many other aquifers are depleting rapidly and growing more toxic from pesticides, feedlot waste, intruding salts, and other pollution.  Most won’t be recharged until after the next ice age. The Ogallala is one of Earth’s largest … Continue reading

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Peak Aquifers: Very little Ground water is renewable, perhaps only 1.5%

Gleeson, Tom, et al. November 2015. The global volume and distribution of modern groundwater. Nature Geoscience. The water in aquifers and wells billions of people depend upon is mostly a non-renewable resource that could run out. Underground water is renewed … Continue reading

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Groundwater depletion consequences

Robert. Glennon. 9 Oct 2002. The Perils of Groundwater Pumping. The excessive “mining” of our aquifers is causing environmental degradation on a potentially enormous scale. Issues in Science and Technology. National Academy of Sciences. Groundwater is more than 25 percent … Continue reading

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Water depletion and pollution

Water Depletion Michael Specter. October 23, 2006. The Last Drop. Confronting the possibility of global catastrophe. The New Yorker. Cyanobacteria Brookes, J., et al.  7 Oct 2011. Resilience to Blooms. Science. Explosive cyanobacterial blooms cause disease in humans and livestock, … Continue reading

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