A new study shows that systems designed to capture methane from cow manure, called dairy digesters, are highly effective. But on the rare occasions they fail, the leaks are large enough to offset ...
A Danish company’s plans to turn cow manure into renewable energy in Minnesota and Wisconsin’s dairy country have tanked, at least for now. Nature Energy planned to build several large-scale anaerobic ...
When fuel ran out during the second world war, some farmers in Germany and France made their own fuel by covering cisterns of manure and capturing the methane that was generated. Now, governments are ...
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