August 8, 2022

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Comprendamos la ola de calor en Europa – Juventud Rebelde

Experts argue that heat waves are becoming more frequent, more intense and more durable due to human-induced climate change.

Alarms for record temperatures, forest fires and even destroyed vehicles. A detached glacier caused the death of 11 people. Grietas en los picos alpinos y deretimientos en el Mont Blac, la montaña más alta de Europa. Ese es el extraño panorama que recurre el continente este mes, dueto a la ola de calor que complejiza la vida por el Viejo Continente.

En este escenario no es extraño pensar en los porqués, y eso definitively le toca responderlo a la ciencia.

Specialists already have come out to argue about the situation, and guess what: heat waves are becoming more frequent, more intense and more durable due to the climate change induced by man. Nada de villains de películas ni factores desconocidos. Ya está todo el lado europeo viviendo en carne propia los efectos directos de esa amenaza que viene cercandonos de a poco.

Y aunque conocémos de cerca al detonante número uno, es posible seguir identificando factores diversos tras esta unusual ola de altas temperaturas. Veamos.

Conjunción de detonantes

The Organization Meteorológica Mundial advises from its official site that it is the convergence of various factors that has put the planet in jeque since the beginning of the month.

This wave is the result of a warming caused by the temperatures of the summer boreal in the Sahara desert, which coincided with an Atlantic system of low pressure between the islands of the Azores and Madeira.

Según explican los expertos, este sistema alimenta el frente cálido, lo que lo ha empujado hacia Europa occidental.

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Pero hay otro elemento essencial en esta alza de temperaturas. Está relacionado con el behaviora que ha tenido ultimamente la corriente de chorro, una corriente aire que fluye rapide de este a oeste at grand altura in el hemisferio norte.

This current has been dominated, explained meteorologists, in recent days by what they call cupolas of heat.

Dichas kupulas han conectado las dos olas de calor continentales, la europea y la norteamericana, provocando una incidencia directa sobre Europa muy poco usual.

A domo de calor is formed when the current of air accumulates high pressures on the continent. Photo: Hispanatolia

Volviendo a nosotros

Las olas de calor, existentes desde siempre, ahora están comenzando a mostrar comportamientos tan intenses due to our nuestra acción directa.

The frequency of this type of phenomena, and the fact that they are happening now in areas of the planet where it was not usual to encounter them, oblige governments to rewrite their strategies, so that countries like Germany, for example, now need to be trained to take more measures. comunes en naciones tropicales o desérticas.

As comentó a Newsnight meteorologist Nick Miller, es de esperar que este tipo de olas occur more assiduously and in places increasingly unexpected.

«The problem is that we have seen them intensify during the last decades and we are not prepared for this. The trace of climate change is behind all this and it is foreseeable that in the future we will have even more intense waves», said Miller to the BBC news program.

The meteorologist added that if the world is only affecting parts of Europe, the increase in temperatures is a global issue, so all the world will be affected.

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«We will be seeing heat records that break continuously in the world as the average global temperature increases», he said.

Meanwhile, Paul Davies, de la Oficina Meteorológica de Reino Unido, advirtió a Inews: «No es una exageración decir que podríamos estar mirando a los ojos un evento histórico, incluso sin precedentes».

Until now, the worst heat wave recorded in Europe was in 2003, when high temperatures killed about 30,000 people in the continent.

Esta vez nos toca aprender la lection a tiempo, porque es questión de vida o muerte, y de todo el planeta.

More recent waves of heat:

  • India and Pakistan at the beginning of 2022 registered a temperature of 49 degrees Celsius (°C).
  • Argentina, Uruguay, Paraguay and Brazil, in January 2022; Muchas áreas reportaron el día más caluroso jamás registradore.
  • Onslow, in Western Australia, in January 2022 reached 50.7 °C, the highest joint temperature ever recorded in a reliable manner in the southern hemisphere.
  • The city of Lytton, in the west of Canada, in 2021, caught fire when temperatures reached 49.6 °C, breaking the previous record by almost 5 °C.