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Las emisiones del sistema alimentario global podrían impedir el logro de los objetivos de cambio climático de 1,5° y 2°C

  • 0Oxford Martin School and Nuffield Department of Population Health, University of Oxford, Oxford, UK. michael.clark@ndph.ox.ac.uk.
Clinical Neuroscience (new York, N.y.) +

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6 de noviembre de 2020

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6 de noviembre de 2020

Ver abstracta en PubMed

Resumen

Este resumen es generado por máquina.

Incluso detener las emisiones de combustibles fósiles no alcanzará el objetivo climático de 1,5°C. Los sistemas alimentarios mundiales requieren cambios significativos junto con los sectores no alimentarios para alcanzar los objetivos climáticos.

Área De La Ciencia

  • Ciencias del clima
  • Ciencias del medio ambiente
  • Análisis de los sistemas alimentarios

Sus Antecedentes

  • El Acuerdo de París tiene como objetivo limitar el aumento de la temperatura global a 1,5 o 2 °C por encima de los niveles preindustriales.
  • La reducción de las emisiones de gases de efecto invernadero, en particular de los combustibles fósiles, es fundamental para alcanzar estos objetivos climáticos.

Objetivo Del Estudio

  • Evaluar el impacto de los sistemas alimentarios mundiales en el logro de los objetivos climáticos del Acuerdo de París.
  • Determinar los cambios necesarios en los sistemas alimentarios para alcanzar los objetivos climáticos, independientemente de las emisiones de combustibles fósiles.

Principales Métodos

  • Modelado de los efectos de las tendencias actuales del sistema alimentario en las emisiones de gases de efecto invernadero.
  • Análisis de escenarios de reducción de emisiones tanto para el sector alimentario como para el no alimentario.

Principales Resultados

  • Las tendencias actuales del sistema alimentario mundial por sí solas impedirán alcanzar el objetivo de 1,5°C.
  • El objetivo de 2°C está amenazado por los sistemas alimentarios a finales de siglo si continúan las emisiones de combustibles fósiles.
  • Alcanzar el objetivo de 1,5°C requiere cambios rápidos y ambiciosos en todos los sectores, incluidos los sistemas alimentarios.

Conclusiones

  • Los sistemas alimentarios representan un obstáculo significativo, a menudo subestimado, para alcanzar los objetivos climáticos globales.
  • Las transformaciones sustanciales en la producción y el consumo de alimentos son tan cruciales como las reducciones de emisiones de combustibles fósiles para la mitigación del clima.
  • El cumplimiento de los objetivos climáticos requiere un enfoque holístico que aborde las emisiones de todos los sectores, en el que los sistemas alimentarios juegan un papel fundamental.

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