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Heat wave in Europe. Climate change would have added 4 degrees

Heat wave in Europe. Climate change would have added 4 degrees


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Scientists have said that human-induced climate change likely triggered the heat wave in Europe last month, in which southern France experienced a national record of 45.9 degrees Celsius, 4.0 ° C warmer than it would have been. otherwise.

"Climate change is no longer an abstract increase in global mean temperature, but rather a difference you can feel when you go outside in a heat wave," said Dr. Geert Jan van Oldenborgh, principal investigator at the Royal Meteorological Institute of the Netherlands and one of the authors of the article.

"Observations show that, similarly, frequent heat waves would probably have been about 4.0 ° C cooler a century ago," said the report by the World Weather Attribution group of scientists.

He also said that climate change had made the record heat wave five times more likely. "We experienced a heat wave whose intensity could become the norm by mid-century," said Dr. Robert Vautard, principal scientist at the CNRS institute in France.

Climate scientists have long said that the warming of the earth's surface caused mainly by carbon dioxide emissions from the industrial age of fossil fuels will make weather events more extreme and that those extremes, such as storms, droughts and floods, are more frequent.

The World Weather Attribution group used computer models for three days, June 26-28, to calculate temperatures they would have otherwise expected.

The new temperature record set in France, at Gallargues-le-Montueux, in the southern region of Provence, was almost two degrees above the previous high recorded in August 2003.

The World Meteorological Organization (WMO) said that 2019 was on track to be among the hottest years in the world, and that 2015-2019 would be the hottest five-year period on record.

The body added that the European heat wave was "absolutely consistent" with the extremes related to the impact of greenhouse gas emissions.


Video: Climate Change and Devastating Heat Waves an Earth101 short (July 2022).


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