In 2007 when the U.N. Food & Agriculture Organisation released its 400+ page report titled 'Livestock's Long Shadow' there was one little problem. It estimated the livestock industry's contribution of greenhouse gases at 18% while failing to consider at least 10 other ways in which this environmentally destructive industry contributes GHG.
World Watch Institute
Regaining Compassion for Humanity and Nature - by Professor Charles Birch
Regaining Compassion for Humanity and Nature by L. Charles Birch
(extracts from the above)