Environmental, Economic and Social Impacts of Reducing Japanese Food Loss and Waste in Relation to Global Food Markets

MUNESUE Yosuke, MASUI Toshihiko, KANAMORI Yuko

doi:10.11353/sesj.36.15

<p>Although the Japanese government has set a goal to halve food loss and waste by 2030 compared to 2000 levels, the impacts of achieving this goal on the environment, economy, and society in relation to global food markets are unclear. In this study, the impacts are estimated using a global food trade model, which assumes that Japan achieves the food loss and waste halving target for major food trade items; these estimates indicate a 10.1％ reduction in the total amount of food loss and waste generation, based on the 2015 global economy. Consequently, global food production will decrease by $2.70 billion in terms of international food prices, while world land and water resource utilization during agricultural production will be reduced by 37.8 thousand hectares and 78.7 million m³, respectively, due to the decrease in crop production, and greenhouse gas emissions from food production will decrease by 940 thousand tons CO₂eq. worldwide. Furthermore, the total world dietary energy supply will increase by 8.62×10¹¹ kcal, which is equivalent to 43.9％ of the energy equivalent of food loss and waste reduced by Japan, leading to a decrease of 590 thousand undernourished people worldwide.</p>

Environmental, Economic and Social Impacts of Reducing Japanese Food Loss and Waste in Relation to Global Food Markets

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