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Comentario sobre "El potencial de restauración de árboles en todo el mundo"

Simon L Lewis1,2, Edward T A Mitchard3, Colin Prentice4

  • 1Department of Geography, University College London, London WC1E 6BT, UK. s.l.lewis@leeds.ac.uk.

Science (New York, N.Y.)
|October 19, 2019
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Resumen

Una nueva investigación desafía la afirmación de que la restauración global de árboles es la solución más efectiva para el cambio climático. El estudio encuentra que el potencial estimado de restauración de carbono y las cifras proyectadas de pérdida de bosques tropicales son inexactas.

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Área de la Ciencia:

  • Ecología
  • Ciencias del clima
  • Sector forestal

Sus antecedentes:

  • Un informe reciente sugirió un potencial de restauración forestal global de 205 gigatoneladas de carbono.
  • Este informe concluyó que la restauración de árboles es la solución más efectiva para el cambio climático.
  • El informe también proyecta una pérdida significativa de bosques tropicales debido al cambio climático para 2050.

Objetivo del estudio:

  • Reevaluar el potencial de secuestro de carbono de la restauración forestal mundial.
  • Evaluar críticamente la eficacia de la restauración de los árboles como estrategia de mitigación del cambio climático.
  • Examinar los impactos proyectados del cambio climático en los ecosistemas de los bosques tropicales existentes.

Principales métodos:

  • Análisis de los datos existentes sobre el potencial de almacenamiento y restauración de carbono en los bosques.
  • Revisión de los modelos climáticos y sus proyecciones para los ecosistemas de los bosques tropicales.
  • Comparación de las cifras de restauración con los principios ecológicos y climáticos establecidos.

Principales resultados:

  • El potencial de restauración forestal global estimado es significativamente menor que el informado anteriormente.
  • La restauración de árboles, aunque es beneficiosa, no es la solución más efectiva para el cambio climático.
  • Las pérdidas proyectadas de bosques tropicales para 2050 debido al cambio climático son probablemente sobreestimadas.

Conclusiones:

  • Las afirmaciones sobre la escala del potencial de restauración forestal y su eficacia son exageradas.
  • Confiar únicamente en la restauración de árboles como la solución climática principal es científicamente infundada.
  • Se necesitan más investigaciones y estrategias matizadas para abordar el cambio climático y la conservación de los bosques.