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Since the spring and summer of this year, we have experienced the harm caused by extreme weather. Droughts and floods have occurred alternately in various places, posing a great threat to global food security. Unexpectedly, in winter, extreme weather began to appear again. Recently, it has been seen on many social media that the snowfall in Canada has increased, and the low temperature and cold wave are coming. Now it seems that this should be the prelude to the extreme weather in North America. The extreme winter weather warning issued by the United States this time is “one of the largest severe winter weather warnings ever issued by the United States.” , Not only will it affect the normal travel of ordinary people, but it will also cause fundamental damage to the infrastructure in various regions.
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