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Greenhouse gas emissions across the supply chain in kilograms of carbon dioxide equivalents (kgCO₂eq) per kilogram of food

Main

Other products

Land use change

Farm

Animal feed

Processing

Transport

Retail

Packaging

Source: Poore, J., & Nemecek, T. (2018). Reducing food’s environmental impacts through producers and consumers, Our World in Data • Data represents the global median greenhouse gas emissions of food products based on a large meta-analysis of food production covering 38,700 commercially viable farms in 119 countries.

Nuts and some other products have negative figures because at the time the study was carried out trees (which store CO2) were replacing croplands.