El cambio climático reduce los niveles de oxígeno en los ríos del mundo

18 de mayo de 2026

Reportado por IA

Los ríos de todo el planeta están perdiendo oxígeno disuelto de forma constante, y el cambio climático ha sido identificado como el factor principal en un nuevo estudio exhaustivo. Cerca del 80 por ciento de los sistemas fluviales analizados han mostrado descensos durante cuatro décadas, siendo las regiones tropicales las más afectadas.

Los investigadores examinaron observaciones de 21.439 tramos fluviales recopiladas entre 1985 y 2023. Determinaron que los niveles de oxígeno disminuyeron a una tasa media de 0,045 miligramos por litro por década, afectando al 78,8 por ciento de los ríos por desoxigenación. El estudio fue dirigido por el profesor Kun Shi, del Instituto de Geografía y Limnología de Nanjing de la Academia China de las Ciencias, con la doctora Qi Guan como autora principal y la colaboración de la Universidad Tongji.

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