Tracking the Mood About Gas Prices on Twitter: A Case Study

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by January 25, 2012
Have you ever wondered how the mood about gas prices fluctuates? Here we report results from a case study that reveals how this mood varies, or not, across the U.S. over a month-long period, including the Memorial Day weekend 2011. More »

Monitoring Will Be Key As Minnesota Takes A Leadership Role in Managing Nutrient Runoff

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by January 18, 2012
On January 17th, U.S. EPA Administrator Lisa Jackson signed a memorandum of understanding with Minnesota Governor Mark Dayton and USDA Secretary Tom Vilsack that launches a new state-federal program designed to limit runoff from agricultural fields. The program has stirred debate, with some arguing that it does not go far enough. One thing is for sure, we will need great monitoring of water quality to understand if the new farm management plans are working. More »

A Billion Dollars Flowing Down the Mississippi Annually

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by December 20, 2011
Ever think about how much money is flowing down the Mississippi into the Gulf of Mexico? Probably not. Here's a quick estimate of the value of the plant nutrient nitrogen that is flowing down the river annually. About a billion dollars. That's a lot of cash! Perhaps this angle on a hugely contentious story will inspire action from the perspective of dollars and cents. More »
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