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Satellite measurements show huge drop in groundwater aquifers in California's Central Valley

By Thomas H. Clarke, Jr. For the last three years, California has been experiencing a major drought; only this season has the rainfall been "normal", probably due to El Nino. Yet, during the last six years, even before the onset of the drought, crop irrigation in California's Central...

Silver nanoparticles are transformed by sewage treatment

Prior posts have noted a number of issues related to nanoparticles. Silver nanoparticles are used in hundreds of consumer products, including food storage containers, clothing, computer keyboards, cosmetics, pillows, cell phones, and medical appliances, because of their antimicrobial properties. Because...

California sets forth indicators of disproportionate impacts of climate change on environmental justice communities

To assist Cal-EPA with the examination of potential environmental justice concerns associated with climate change, Cal-EPA requested the Office of Environmental Health Hazard Assessment (OEHHA) [best known for its role in setting drinking water related Public Health Goals and in overseeing much of the...

Agricultural Food Exports Use a Lot of Water

When examining the issue of water shortages and water usage, most of the emphasis is on domestic utilization. Rarely is the issue posed in terms of the impact of trade on water usage. However, such an analysis poses an alternative, and interesting, methodology to think about and examine water utilization...