Researchers from Stanford and the University of Calgary have transformed pulses of electrical current sent 1,000 feet underground into a picture of where seawater has infiltrated freshwater aquifers along the Monterey Bay coastline.

The findings, which will be published in an upcoming issue of the Journal of Hydrology but are available online now, help explain factors controlling this phenomenon, called saltwater intrusion, and could help improve the groundwater models that local water managers use to make decisions about pumping groundwater to meet drinking or farming needs.

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“Preventable” asthma attacks among schoolchildren cost millions in health care dollars over 10 years, according to a new study by the city of Houston, Rice University and the Houston Independent School District (HISD).

The revelation is part of a project that seeks to minimize risk to students by showing where, when and how often emergency medical crews were called to treat “uncontrolled” asthma attacks at public schools in Houston and at students’ homes.

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The hidden toll that subsidies for electricity, fossil fuels, and transport have on social welfare, economic growth and technological innovation needs to be exposed through better research says a new paper in Ecological Economics by Benjamin K Sovacool.

Energy subsidies, which have mostly supported fossil fuels and nuclear power over the previous half century, have historically kept energy prices artificially low, compared to market rates. But they come at a high cost to governments and taxpayers. The Indian government, for example, spends as much as it does on fuel subsidies for kerosene and liquid propane, used to light rural houses, as it does on education. India subsidises fossil energy consumption by $21 billion every year, which works out at $16 per person. Given that 500 million of its people live on less than $2 per day, this is a surprisingly large amount.

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