Otra señal de que las cosas se están poniendo raras: Los relámpagos alrededor del Polo Norte aumentaron dramáticamente en 2021

A medida que el clima extremo causaba estragos en todo el mundo en 2021, un cambio sorprendente estaba ocurriendo en el extremo norte del Ártico, en gran parte fuera de la vista pero detectable por una red de sensores. Lightning increased significantly in the region around the North Pole, which scientists say is a clear sign of how the climate crisis is altering global weather.

Vaisala, an environmental monitoring company that tracks lightning around the world, informó 7,278 lightning strokes occurred last year north of 80 degrees latitude, nearly twice as many as the previous nine years combined.
Arctic lightning is rareeven more so at such far northern latitudesand scientists use it as a key indicator of the climate crisis, since the phenomena signals warming temperatures in the predominantly frozen region. Lightning occurs in energetic storms associated with an unstable atmosphere, requiring relatively warm and moist air, which is why they primarily occur in tropical latitudes and elsewhere during summer months.

    The annual number of lightning strokes in the Arcticthe region north of around 65 degrees latitudehas remained consistent over the past decade, but it is now surging significantly in the extreme north. Chris Vagasky, meteorologist and lightning applications manager at Vaisala, said a warming planet is charging up the Arctic’s environment for more lightning to occur.
      What we’ve been seeing is that lightning and thunderstorms are developing over Siberia, and then moving out over the Arctic Ocean and continuing very far north,” Vagasky told CNN, underscoringthe warm, humid air from all continents are now going out over the Arctic Ocean and they’re persisting over the Arctic Ocean, so that you get storms that are developing there.
        Jose Martinez-Claros, a researcher at the University of California, San Diego’s Center for Western Weather and Water Extremes, who is not involved with the report, said the findings wereconcerning.
        It seems to suggest in the drying and warming climate, these types of storms now reach latitudes that are very much higher than they used to be and closer to the Arctic,” él dijo.
          A 2021 estudio also found Arctic lightning had increased between 2010 y 2020 and the trend was strongly linked to global warming, which is caused by fossil fuel emissions.
          We know that the Arctic is changing faster than the rest of the Earth with respect to its climate,” Vagasky said. “And so monitoring these trends in thunderstorms and lightning in this very remote area helps us detect where these warm, moist air intrusions are occurring in this region.
          Lightning in the US also increased in 2021, according to the Vaisala report, donde mas de 194 million lightning strokes occurred — 24 million more than what was observed in 2020.
          Más que 1 million of those occurred in December, in concert with several unprecedented winter time severe weather outbreaks that ravaged the Central and Southern US. It was the highest number of strokes researchers have seen in December since 2015, Vagasky said, noting noweven the December time period, you might be getting spring- or summer-type conditions,” él agregó.
          In the US, Texas recorded the most lightning last year, primarily due to its large area and warm, storm-prone location, Vaisala reports. Florida saw the highest lightning density than any other state, con 223 lightning events per square mile, followed by Louisiana and Texas.
          Researchers also found lightning-triggered wildfires burned more than two million acres in the US last year. En el drought-stricken West, dry lightning sparked deadly and destructive wildfires, incluyendo el Bootleg Fire in Oregon that burned more than 400,000 hectáreas.
          Columbia Británica, which typically doesn’t experience as much lightning as Canada’s central provinces, also saw a particularly rare lightning outbreak as an unprecedented heat wave seared the region. Between June 30 y julio 1, más que 700,000 lightning strokes were recorded in the province.
          Vaisala has been detecting lightning in the US for nearly 40 años, and around the planet since 2012. The network detects more than two billion lightning events around the world each year, according to Vaisala, incluyendo un 2019 lightning event around 32 miles from the North Pole, which set a Guinness World Record for the northernmost lightning stroke ever detected.
            Vagasky said as the climate crisis advances and the Arctic continues to warm, changes in far remote regions will have a ripple effect on weather across the planet.
            All weather is local,” Vagasky said. “When you’re having these drastic changes, especially in places like the Arctic, those sorts of changes are not just impacting the Arctic. The Earth is totally interconnected.

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