But not as harmful in food chain as previously thought . Initial production phase ` ` by far the most important '' in food chain , says FAO . Food and Agricultural Organization contributes over 33 percent of global impact . Meat and dairy contribute 40 percent of ` ` food - related impact ''
Transportation not as harmful in food chain as previously thought . Initial production phase `` by far the most important '' in food chain , says FAO . Food and Agricultural sector contribute over 33 percent of global emissions . Meat and dairy contribute 50 percent of `` food-related impacts ''