Costco organic eggs

Study finds significant reductions in GHG emissions among egg farmers

Costco Wholesale used the Cool Farm Tool to engage its entire organic egg supply base in a program of continuous improvement in agricultural sustainability. The case study, published in the Journal of Cleaner Production, describes the reduction of GHG emissions in the commercial egg production of 10 large-scale egg producers who used the Cool Farm Tool over three years.  The livestock pathway of the tool was used to calculate the emissions, considering enteric methane emissions from ruminants, nitrous oxide and methane emissions from manure management, land use and land-use change, feed production, processing and transport.

The assessments illustrated that the highest GHG emissions were produced through feed, followed by transport and manure management. Through using the tool, the farmers became aware of the sources of emissions in egg production and without targets, took action to reduce emissions. The results show that the averaged GHG emissions decreased over the three years of the study by nearly 25%. The study was followed by further initiatives to realise still more reductions while benefiting farmers.

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