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Combining mitigation strategies to increase co-benefits for biodiversity and food security

Prudhomme Rémi, de Palma Adriana, Dumas Patrice, Gonzalez Ricardo, Leadley Paul, Levrel Harold, Purvis Andy, Brunelle Thierry. 2020. Combining mitigation strategies to increase co-benefits for biodiversity and food security. Environmental Research Letters, 15 p.

Journal article ; Article de recherche ; Article de revue à facteur d'impact Revue en libre accès total
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Abstract : World agriculture needs to find the right balance to cope with the trilemma between feeding a growing population, reducing its impact on biodiversity and minimizing greenhouse gas (GHG) emissions. In this paper, we evaluate a broad range of scenarios that achieve 4.3 GtCO2,eq /year GHG mitigation in the Agriculture, Forestry and Other Land-Use (AFOLU) sector by 2100. Scenarios include varying mixes of three GHG mitigation policies: second-generation biofuel production, dietary change and reforestation of pasture. We find that focusing mitigation on a single policy can lead to positive results for a single indicator of food security or biodiversity conservation, but with significant negative side effects on others. A balanced portfolio of all three mitigation policies, while not optimal for any single criterion, minimizes trade-offs by avoiding large negative effects on food security and biodiversity conservation. At the regional scale, the trade-off seen globally between biodiversity and food security is nuanced by different regional contexts.

Mots-clés Agrovoc : Sécurité alimentaire, Biodiversité, atténuation des effets du changement climatique, Gaz à effet de serre, réduction des émissions, Utilisation des terres, Politique de l'environnement, Conservation de la diversité biologique

Mots-clés complémentaires : émissions de gaz à effet de serre, stratégie pour faire face à une crise

Mots-clés libres : Climate mitigation, Global scale, Land use, Biodiversity

Classification Agris : P01 - Nature conservation and land resources
E10 - Agricultural economics and policies
P40 - Meteorology and climatology

Champ stratégique Cirad : CTS 1 (2019-) - Biodiversité

Auteurs et affiliations

  • Prudhomme Rémi, CIRAD-ES-UMR CIRED (FRA) - auteur correspondant
  • de Palma Adriana, Natural History Museum (GBR)
  • Dumas Patrice, CIRAD-ES-UMR CIRED (FRA) ORCID: 0000-0002-3896-7589
  • Gonzalez Ricardo, Natural History Museum (GBR)
  • Leadley Paul, Université de Paris-Sud (FRA)
  • Levrel Harold, CIRED (FRA)
  • Purvis Andy, Natural History Museum (GBR)
  • Brunelle Thierry, CIRAD-ES-UMR CIRED (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/596395/)

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