A new study shows that systems designed to capture methane from cow manure, called dairy digesters, are highly effective. But ...
Dairy methane digesters cut emissions on farms, but rare leaks can release powerful bursts that may offset their climate ...
Add Yahoo as a preferred source to see more of our stories on Google. CASA GRANDE — Thousands of gallons of liquid manure sit in the open on 25-foot deep settling ponds at Casa Grande Dairy Co. Farm ...
A bill advanced from the Iowa House last week that would regulate anaerobic digesters, or systems that break down organic material in an oxygen-deprived system to produce usable biogas and fertilizer, ...
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