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The food loss and waste calculator and how it can be used to mitigate climate change

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This presentation was given on 9 July 2019 by Jan Broeze (Wageningen University & Research) and focused on the new Agro-Chain Greenhouse gas Emissions calculator that he has developed. The presentation was part of the CLIFF-GRADS webinar series session 3 which focused on mitigating climate change through reducing food loss and waste.

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The food loss and waste calculator and how it can be used to mitigate climate change

  1. 1. Wageningen Food & Biobased Research The Food Loss and Waste Calculator and how it can be used to mitigate climate change ACGE (Agro-Chain Greenhouse gas Emissions) calculator Jan Broeze (Wageningen Research) 9 July 2019 jan.broeze@wur.nl
  2. 2. Wageningen Food & Biobased Research Motivation • identify hot-spots • FLW (Food Loss & Waste) • associated GHG emissions • assess net benefit of interventions
  3. 3. Wageningen Food & Biobased Research Using ACGE calculator in CCAFS research 1. Formulate chain configuration for the product: all operations that cost fuel, energy, packaging material, etc. 2. Estimate FLW along the post-harvest chain  Storage and handling  Primary processing and packaging  Distribution/processing/repackaging  Food distribution  Optionally: consumption Based on secondary data (when available: primary data!!) 3. ACGE calculator estimates GHG emissions due to losses Intervention: ● How are chain configuration and parameters changed? (transport, storage durations, packaging, energy use, FLW) ● ACGE calculator estimate GHG emissions due to losses in new configuration
  4. 4. Wageningen Food & Biobased Research Cassava processing Mozambique: GHG Emissions 4 GHG emission of Cassava starch used in a brewery produced at different scales of industrialization, and compared with maize. -31% 18% 25% 42% 39%
  5. 5. Wageningen Food & Biobased Research Which factors are taken into consideration? Chain stage Impacts included Agricultural production GHG emissions agricultural production Collection transport Fuel use Processing Packaging materials (paper/board, plastics, glass, metals) Refrigerated storage energy use Other energy use Transport Fuel use Processing, cross-docking or distribution centre Packaging materials (paper/board, plastics, glass, metals) Refrigerated storage energy use Other energy use Distribution transport Fuel use Retail (market, shop, ...) Energy use (refrigeration) All stages along the post- harvest chain Percentage of FLW per chain stage All stages along the post- harvest chain Impact of waste processing (landfilling, composting, bio- fermentation, incineration) [
  6. 6. Wageningen Food & Biobased Research Default values for parameters in the model Parameters Defaults basis Remark GHG emissions agricultural production Porter et al. (2016) Differentiated: crop categories & global regions Transport EcoInvent & ... Differentiated for truck load capacities and ship types Packaging material Various scientific papers + reports paper/board, plastics, glass, metals Refrigerated & frozen storage energy use Evans et al. (2014) Differentiated for large-scale storage in supply chain & small scale refrigeration in retail Processing energy use -- Situation-specific; default = 0 FLW per stage along the chain Porter et al. (2016) Differentiated: crop categories & global regions
  7. 7. Wageningen Food & Biobased Research Level of detail Global regions Product categories Europe Barley Fruits: fresh North America and Ociania Maize Fruits: processed Industrialized Asia Millet Vegetables: fresh Sub-Saharan Africa Oats Vegetables: processed North Africa, West and Central Asia Rice Meat: beef South and Southeast Asia Rye Meat: pork Latin America Sorghum Meat: poultry Wheat Eggs Roots and Tubers: fresh Milk Roots and Tubers: processed Fish and seafood: fresh Cassava Fish and seafood: processed Oil palm Oil crops Pulses
  8. 8. Wageningen Food & Biobased Research jan.broeze@wur.nl

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