University of Vermont graduate student Delaney Bullock gathers runoff samples from two agricultural fields to be analyzed for nutrient concentrations on March 12 in Bridport, Vt.
Amanda Swinhart, Associated Press
A field used for corn silage on Blue Spruce Farm is pictured on March 24 in Bridport, Vt.
Amanda Swinhart, Associated Press
Runoff samples from two agricultural fields to be analyzed for nutrient concentrations sit in holders on March 12 in Bridport, Vt.
Amanda Swinhart, Associated Press
Dairy cows feed at Blue Spruce Farm on March 28 in Bridport, Vt.
When pollution gets bad enough in the rivers supplying Iowa's largest city with drinking water, it costs Des Moines around $16,000 a day to run a special system to filter out dangerous nitrates. It's a fact of life in the agriculture-dependent state — and climate change is making the water quality problem even worse.
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University of Vermont graduate student Delaney Bullock gathers runoff samples from two agricultural fields to be analyzed for nutrient concentrations on March 12 in Bridport, Vt.
