5 puntos climáticos 'catastróficos' que el mundo experimentará

08/09/2022

Las capas de hielo gigantes, las corrientes oceánicas y las regiones de permafrost ya pueden haber pasado el punto de cambio irreversible en el mundo

"La Tierra puede haber dejado un estado climático 'seguro' más allá del calentamiento global de 1C", concluyeron los investigadores, con toda la civilización humana habiéndose desarrollado en temperaturas por debajo de este nivel. Es probable que pasar un punto de inflexión 

ayude a desencadenar otros , produciendo cascadas. Pero esto todavía se está estudiando y no se incluyó, lo que significa que el análisis puede presentar el mínimo peligro.El profesor Johan Rockström, director del Instituto Potsdam para la Investigación del Impacto Climático, que formó parte del equipo de estudio, dijo: “El mundo se dirige hacia 2-3C de calentamiento global.

El riesgo de puntos de inflexión climáticos está aumentando rápidamente a medida que el mundo se calienta

Rango estimado de calentamiento global necesario para pasar la temperatura del punto de inflexión

“Esto pone a la Tierra en el camino para cruzar múltiples puntos de inflexión peligrosos que serán desastrosos para las personas en todo el mundo. Para mantener condiciones habitables en la Tierra y permitir sociedades estables, debemos hacer todo lo posible para evitar cruzar los puntos de inflexión”.El Dr. David Armstrong McKay de la Universidad de Exeter, autor principal del estudio, dijo: “Es realmente preocupante. Hay motivos para el dolor, pero también hay motivos para la esperanza.“El estudio realmente respalda por qué el objetivo del acuerdo de París de 1,5 °C es tan importante y se debe luchar por él.“No estamos diciendo eso, porque probablemente vamos a llegar a algunos puntos de inflexión, todo está perdido y se acabó el juego. Cada fracción de grado que nos detenemos más allá de 1.5C reduce la probabilidad de alcanzar más puntos de inflexión”.Investigaciones recientes han mostrado signos de 

desestabilización en la selva amazónica, cuya pérdida tendría implicaciones "profundas" para el clima global y la biodiversidad, así como para la 

capa de hielo de Groenlandia y las corrientes de la 

Corriente del Golfo que los científicos llaman circulación de vuelco meridional del Atlántico ( Amoc).Un informe reciente del Panel Intergubernamental sobre el Cambio Climático dijo que el riesgo de desencadenar puntos de inflexión climáticos se vuelve alto con 2C de calentamiento global.El análisis, 

publicado en la revista Science , evaluó más de 200 estudios previos sobre puntos de inflexión anteriores, observaciones climáticas y estudios de modelado. Un punto de inflexión es cuando se supera un umbral de temperatura, lo que lleva a un cambio imparable en un sistema climático, incluso si termina el calentamiento global.Los nueve puntos de inflexión globales identificados son: el colapso de 

Groenlandia , la Antártida occidental y dos partes de las capas de hielo de la Antártida oriental, el colapso parcial y total de Amoc, la muerte regresiva del Amazonas, el colapso del permafrost y la pérdida de hielo marino en invierno en el Ártico.

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Si quieres conocer otros artículos parecidos a 5 puntos climáticos 'catastróficos' que el mundo experimentará puedes visitar la categoría Alerta⚡Mundial 2022.

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