Category Archives: Water

Himalayan glaciers that supply water to a billion people are melting fast

Preface. The Himalayan glaciers that supply water to a billion people are melting fast, already 30% has been lost since 1975. Adding to the crisis are the 400 dams under construction or planned for Himalayan rivers in India, Pakistan, Nepal, … Continue reading

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Groundwater rise. Yet another climate change threat.

Preface. In coastal areas flooding is likely to be caused from groundwater rise because as sea levels rise, they won’t only move inland, flooding low-lying land near the shore; but also push water up from the saltwater water table, on … Continue reading

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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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Lakes run dry from too much water extraction and climate change

Preface.   I think that declining oil will be the main cause of civilization to collapse, since it is the energy that makes all other activities possible, but there are so many other contenders I wonder if scholars in the future … 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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What can California do about sea level rise?

Projected sea level rise from one meter (dark red) to six meters (light orange) in California’s Bay Area. (Weiss and Overpeck 2011) Preface. Nearly all, if not all, possible solutions to rising sea levels along all the coasts in the … Continue reading

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Threats to America’s drinking and sewage treatment infrastructure

[ Here are a few of the points made in this 170 page document about improving the nation’s water system security (excerpts follow): There are many potential threats to water infrastructure, including terrorism, failure of aging infrastructure, flooding, hurricanes, earthquakes, … Continue reading

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Water resources infrastructure deteriorating

[ Water infrastructure has inter-dependencies with other essential infrastructure, if dams or levees fail, agriculture and electric power suffer, towns and homes flooded. If ports along the ocean and inland water ways aren’t maintained and waterways dredged, the by far … Continue reading

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Drinking water and sewage treatment use a lot of energy

[ Water treatment (drinking and sewage) use tremendous amounts of energy. Some of the statistics from this document “Water & Wastewater Utility energy research roadmap” below are: In 2008 municipal wastewater treatment systems (WWTP) in the United States used approximately … Continue reading

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Electric Cars and Biofuels switch dependence from foreign oil to domestic water and weather risks

  Figure 1. Energy/Water Nexus Amy Hardberger, Matthew E. Mantell, Michael Webber, Carey W. King, Karl Fennessey [ This Senate hearing covers a lot of ground. I found the most interesting testimony to be the intersection of water and energy, … Continue reading

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