According to a study, an unprecedented heat wave in the western United States and Canada would have been “virtually impossible” without climate change. “There is absolutely no doubt that climate change has played a critical role here,” climate researcher Frederic Otto of the University of Oxford told a news conference on Wednesday.
Global warming caused by greenhouse gases has increased the likelihood of a heat wave in the United States at least 150 times.
For the study by the World Weather Research Group (WWA), scientists compared historical climate observations with today’s weather. Thus, the values measured in Canada and the United States are so extreme that they should only occur once every thousand years.
If the Earth continues to warm by up to 2 degrees Celsius, which it will be with current emissions over the next few decades, these heat waves could occur every five to 10 years and be about one degree hotter.
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In the Canadian province of British Columbia, a new daily temperature record was set for three consecutive days in June. In the village of Lytton, the thermometer meanwhile showed 49.6 degrees. The village was largely destroyed in a forest fire shortly thereafter.
According to the European Union’s Copernicus Earth Observation Programme, the temperature in the region in June was 1.2 degrees higher than the average for the years 1991 to 2020. For Europe, it was the second-warmest month of June since records began, and the fourth-warmest in the world, Together with June. 2018. In other parts of the world, temperatures were also high in June.