Tag: groundwater depletion

Thirsty Las Vegas pushes legislative water grab

Nevada water zombies seek legislative sanction for destructive groundwater exploitation.

Proposed bill would enable desert-killing groundwater exploitation

Staff Report

After failing several times to win approval for a new groundwater depletion scheme via regulatory channels, the Southern Nevada Water Authority is now pursuing a legislative water grab that could devastate fragile desert ecosystems and push some endangered species even closer to extinction.

Most recently, the Nevada Supreme Court rejected the Las Vegas bid for a new pipeline.

Assembly Bill 298 would enable for groundwater export projects that would harm prings and wetlands, degrade air quality with fugitive dust and impact existing water rights holders. During the hearing numerous members of conservation groups and the public spoke to vigorously oppose the bill. Continue reading “Thirsty Las Vegas pushes legislative water grab”

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Study warns of unsustainable global groundwater use

New research ranks world’s most threatened aquifers

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Key groundwater basins around the world are being depleted at an unsustainable rate. Map courtesy MIT’s Water For All project.

Staff Report

FRISCO — Scientists this week said that many parts of the world are using groundwater at an unsustainable rate, without any clear idea about when the water might run out. The most overburdened aquifers are in the world’s driest areas, which draw heavily on underground water. Climate change and population growth are expected to intensify the problem.

After studying the world’s 37 largest aquifers, the research team said the Arabian Aquifer System, an important water source for more than 60 million people, is the most overstressed in the world. The Indus Basin aquifer of northwestern India and Pakistan is the second-most overstressed, and the Murzuk-Djado Basin in northern Africa is third. Continue reading “Study warns of unsustainable global groundwater use”

Groundwater depletion threatens sustainability of Colorado River

Satellite data suggests more than 75 percent of water loss in drought-stricken basin is from groundwater pumping

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A new study quantifies groundwater depletion in the Colorado River Basin. Map courtesy U.S. Bureau of Reclamation.

By Summit Voice

FRISCO — Groundwater pumping is a huge factor in the Colorado River Basin water equation, California-based researchers said this week, announcing the results of satellite study that for the first time quantifies how groundwater contributes to the water needs of western states.

Along with surface diversions and pipelines, water users in the basin are also unsustainably depleting underground aquifers. For example, mountain resort towns in  Colorado tap underground water from headwaters streams like Tenmile Creek and the Blue River for municipal use.

The new study found that more than 75 percent of the water loss in the drought-stricken Colorado River Basin since late 2004 came from underground resources. The extent of groundwater loss may pose a greater threat to the water supply of the western United States than previously thought, the researchers concluded. Continue reading “Groundwater depletion threatens sustainability of Colorado River”

Earth: Is groundwater depletion in the Central Valley causing the Sierra Nevada to grow faster?

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A NASA Earth Observatory image shows the Sierra Nevada Mountains in California.

Study also correlates aquifer withdrawals with activity on San Andreas Fault

Staff Report

FRISCO —After crunching the numbers from a global earth-monitoring network, University of Nevada, Reno scientists day rapid depletion of groundwater in California’s Central Valley is accelerating uplift of the Sierra Nevada Mountains.

The draining of the aquifer causes upward flexing of the earth’s surface, including the surrounding mountains. The groundwater subsidence is also linked with seismic activity along the San Andreas fault, the researchers reported in the journal Nature. Continue reading “Earth: Is groundwater depletion in the Central Valley causing the Sierra Nevada to grow faster?”