Researchers in North America have warned that climate change may alter the geography of the Olympic and Paralympic Winter Games.
A team of researchers in Canada and the United States looked at 21 cities that hosted the Winter Games between 1924 and 2022 to calculate how they will be impacted by global warming.
They say the calculations were based on the scenario at the end of this century that the global average temperature rises by 4 degrees Celsius above the pre-industrial period.
They say they checked whether the daytime temperature would be below freezing and whether snow of more than 30 centimeters would be able to be maintained.
Locations with more than a 90 percent likelihood of fulfilling the conditions were deemed climate reliable for the Games. Those with likelihood of up to 75 percent were categorized as climate unreliable.
As a result, six cities, including Vancouver, Canada, and Sochi, Russia, became unfit to host the Winter Games by around 2050. Only 12 cities were considered climate reliable.
The group leader, Professor Daniel Scott of the University of Waterloo in Canada, told NHK that the Olympic Games have always been done in one country at a time, but there may be a need to look at new partnerships. He warned that the cost will go up.
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