greenhouse gas emissions / meat product / electricity / substitution product / meat production systems / fossil fuel energy demand / energy requirements / wool product / grain protein products / co-products / non-meat products / fossil energy demand / greenhouse gas / sheep systems / sheep production systems / oil / farm systems / food / energy / dual purpose sheep systems / /
NaturalFeature
New Zealand hill / /
Organization
Federal Government / African Union / United Nations / /
Person
Stewart F. Ledgard / Ming-Jia Yan / Stephen J. Russell / Opio / Stephen G. Wiedemann / Beverley K. Henry / /
Position
Responsible editor / Author / Major / representative / /