GTAV AC:G Y9 - Biomes and food security

War is tipping a fragile world towards mass hunger. Fixing that is everyone’s business | Leaders

Food trade plays a key role in achieving global food security. With a growing consumer demand for diverse food products, transportation has emerged as a key link in food supply chains. We estimate the carbon footprint of food-miles by using a global multi-region accounting framework. We calculate food-miles based on the countries and sectors of origin and the destination countries, and distinguish the relevant international and domestic transport distances and commodity masses. When the entire upstream food supply chain is considered, global food-miles correspond to about 3.0 GtCO2e (3.5–7.5 times higher than previously estimated), indicating that transport accounts for about 19% of total food-system emissions (stemming from transport, production and land-use change). Global freight transport associated with vegetable and fruit consumption contributes 36% of food-miles emissions—almost twice the amount of greenhouse gases released during their production. To mitigate the environmental impact of food, a shift towards plant-based foods must be coupled with more locally produced items, mainly in affluent countries. The contribution of transportation to food systems’ total carbon footprint varies widely depending on calculation methods, indicating different priorities for climate change mitigation in the sector. Here, a global multi-region accounting framework that estimates food-miles and associated emissions over the whole supply chain shows the benefits of localizing food production.

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