For several days, Western Canada has been under a dome of heat, the thermometer locally exceeded 46 degrees.

While other countries are affected by the climate phenomenon, France could also experience these heat waves, aggravated by global warming, according to scientists.

Nearly 46.6 degrees.

It's the crazy temperature recorded in a city in western Canada this weekend after the appearance of a "heat dome" over the country, as well as over the western United States .

This weather phenomenon combines the hot air coming up from the south of Mexico with high pressures which trap this hot air and heat it further.

Hence these heat records.

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Heat waves "more intense, earlier or later"

"This new record beats the previous one which was at 45 degrees and which was set 84 years ago" said David Phillips, climatologist for Environment Canada.

"But we are in the middle of the heat wave and this record could be broken in just a day or two," he explains. 

For him, this phenomenon is not caused by global warming, but is worsened by it: "Global warming does not create a heat wave. On the other hand, it makes it worse, more intense, earlier or later. This is the impact of human activities on the climate. "

A phenomenon already known in France

Other countries are affected by this phenomenon of the heat dome, such as Russia where the temperature has risen to 48 degrees in Siberia in recent days. A phenomenon that can also affect France, remind French climatologists. "We have already had domes of heat in France. Remember in June 2019, we were experiencing a bit of the same type of episode since our national record had been largely broken with the 46 degrees which had been measured at Vérargues in France. 'Hérault ", explains Christelle Robert, forecaster at Météo France.

Ever higher records and which could be prompted to give way quickly as experts predict increasingly significant heat waves. Because for forecasters, these records are a visible imprint of climate change. "We have to review this type of situation in France and in other countries of the world," warns the specialist from Météo France.