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Fronteras seguras y justas del sistema de la Tierra

Johan Rockström1,2,3, Joyeeta Gupta4,5, Dahe Qin6,7,8

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PubMed
Resumen
Este resumen es generado por máquina.

El bienestar humano y la estabilidad del sistema terrestre están vinculados, pero a menudo se tratan por separado. Este estudio cuantifica los límites seguros y justos del sistema terrestre (ESB), encontrando que la mayoría ya se han excedido, amenazando los bienes comunes globales.

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Área de la Ciencia:

  • Ciencias del Sistema Terrestre
  • Ciencias del medio ambiente
  • Salud planetaria

Sus antecedentes:

  • La estabilidad del sistema terrestre y el bienestar humano están interconectados, pero a menudo se estudian de forma aislada.
  • El reconocimiento insuficiente de estas interdependencias conduce a enfoques de gestión independientes.
  • Esta desconexión plantea riesgos tanto para la resiliencia ambiental como para las sociedades humanas.

Objetivo del estudio:

  • Cuantificar los límites seguros y justos del sistema terrestre (ESB) en los componentes críticos del sistema terrestre.
  • Integrar las consideraciones de seguridad ambiental y justicia humana en el establecimiento de límites.
  • Establecer una base cuantitativa para salvaguardar los bienes comunes globales.

Principales métodos:

  • Utilizó técnicas avanzadas de modelado del sistema de la Tierra.
  • Se han realizado evaluaciones exhaustivas de la literatura.
  • Los BSE cuantificados a escala global y subglobal para el clima, la biosfera, el agua, los ciclos de nutrientes y los aerosoles.

Principales resultados:

  • Se encontró que las consideraciones de justicia eran más restrictivas que la seguridad para el clima y los aerosoles atmosféricos.
  • Se han superado siete de los ocho BSE cuantificados a nivel mundial.
  • Se superan al menos dos límites regionales de seguridad y justicia en más de la mitad de la superficie terrestre mundial.

Conclusiones:

  • Los límites actuales del sistema de la Tierra se exceden en gran medida, lo que indica riesgos significativos.
  • Las ESB integradas, seguras y justas son cruciales para mantener la resiliencia planetaria y el bienestar humano.
  • El estudio proporciona un marco cuantitativo para la gestión de los bienes comunes globales para las generaciones presentes y futuras.