The lagoon cover at the Miedema Dairy in Ohio blankets a 350-by-160-foot section of a 350-by-305-foot lagoon. Liquid manure enters the lagoon at the covered end and gradually flows toward the uncovered section. The cover is made of 60-mil, high-density polyethylene (HDPE) geomembrane. A new program coordinated by the Environmental Credit Corp. offers farmers a way to finance manure lagoon covers by selling carbon credits. Read about it here (PDF).

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