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The heat wave entailed wildfires in Alberta, record temperatures across Canada and the US, and over 100 deaths in Mexico. The heat also accelerated snow melt in mountain ranges, causing flooding and mudslides. According to scientists, climate change increased the strength of the 2023 heatwaves including in North America. [3] [4] [5]
In 2023, 2,325 heat-related deaths were reported in the U.S., compared to just 311 in 2004. Researchers also found that heat-related deaths have more than doubled since 1999, a trend they say is ...
According to their methods, Lee said, about 11,000 heat deaths likely occurred in 2023 in the U.S. — a figure that would represent a record since at least 1987 and is about five times the number ...
Because of that lag, it wasn't until this spring that Maricopa County's Public Health Department was able to issue its final count of 645 heat-related deaths for 2023.
Both US and Canadian officials estimated that around 890 ha (2,200 acres) on the Canadian side of the border were on fire due to extended dryness and heat in June into July, due to seasonally high temperatures of 31–32 °C (88–90 °F) at the time of the fire. 2,000 acres (3.13 square miles) on the US side of the border burned. [130]
About 65% of the heat-related deaths reported in Maricopa County in 2023 involved drugs, alcohol or both substances, the report said. At least 45% of the cases involved people experiencing ...
The heat-related death rate in the U.S. (heat being either an underlying or a contributing cause) has increased since the mid 2010s. [4]Between 1979 and 2014, the death rate as a direct result of exposure to heat (underlying cause of death) generally hovered around 0.5 to 1 deaths per million people, with spikes in certain years.
The report said two-thirds of the county's heat-related deaths in 2023 were people 50 years or older, and 71% were on days the National Weather Service issued an excessive heat warning.