Replacing conventional egg production with 100% organic free-range systems could increase greenhouse gas emissions by 60%, nearly double land use, require more hens, and increase mortality while producing the same number of eggs, according to a UK modelling study.

Replacing conventional egg production with 100% organic free-range systems could increase greenhouse gas emissions by 60%, nearly double land use, require more hens, and increase mortality while producing the same number of eggs, according to a UK modelling study.