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Corrección del autor: Elegir el futuro de la Antártida

S R Rintoul^1,2,3, S L Chown⁴, R M DeConto⁵

¹CSIRO Oceans & Atmosphere, Hobart, Tasmania, Australia. Steve.Rintoul@csiro.au.

|July 19, 2018

Resumen

La acidificación del océano está aumentando la concentración de iones de hidrógeno en las aguas superficiales de la Antártida. Este estudio documenta un aumento proyectado del 50% en la acidez para el año 2070, con un impacto en los ecosistemas marinos.

Área de la Ciencia:

Ciencias del medio ambiente
La oceanografía
Investigación sobre el cambio climático

Sus antecedentes:

Las aguas superficiales al sur de 60° S están experimentando cambios químicos significativos.
La acidificación de los océanos es una preocupación creciente para los ecosistemas marinos a nivel mundial.

Objetivo del estudio:

Cuantificar el cambio proyectado en el pH y la concentración de iones de hidrógeno en las aguas superficiales de la Antártida.
Evaluar las consecuencias de estos cambios para el medio marino.

Principales métodos:

Análisis de los datos de pH de las aguas superficiales al sur de 60° S.
Cálculo de los cambios en la concentración de iones de hidrógeno basados en cambios de pH.
Proyección de cambios futuros entre 2017 y 2070.

Principales resultados:

Se prevé una disminución del pH de 0,2 unidades para las aguas superficiales al sur de 60° S entre 2017 y 2070.
Este cambio de pH es equivalente a un aumento del 50% en la concentración de iones de hidrógeno desde el período preindustrial.
Los hallazgos ponen de relieve una tendencia significativa de acidificación del océano en la región antártica.

Conclusiones:

Las aguas superficiales de la Antártida se están acidificando a un ritmo acelerado.
El aumento proyectado de iones de hidrógeno representa una amenaza sustancial para la vida marina.
Se necesita una acción climática urgente para mitigar la acidificación de los océanos.

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