Heat waves will worsen under climate change, says report

Climate change means there will be more heat waves and they will be more extreme, says the Prairie Climate Centre.

Places which almost never see a heat wave, such as Yellowknife and Victoria, will see at least one period yearly when temperatures top 30 C for three or more days, said the University of Winnipeg centre.

Calgary will average four heat waves yearly by 2051, Regina will see two dozen or more 34 C days (up from three currently) and week-long heat waves (instead of three or so days) will be the new norm in Winnipeg.

The centre’s report, entitled Heat Waves and Health says hotter weather leads to more premature deaths from heat stroke and by aggravating the situation for people with heart and respiratory diseases.

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