Many studies have shown that urban forests can reduce the urban heat island, and many policies focus their attention on large green spaces. Concrete and asphalt roads, and other built materials readily absorb, store and release heat, raising city temperatures, a phenomenon called the urban heat island. Urbanization is almost always associated with an increase in paved, impervious areas, and often a decrease in greenery. They’re associated with increased hospital admissions, psychological stress and aggressive behavior, as well as excess mortality.ĭuring heat waves, the highest temperatures are often found in urbanized areas. Heat waves also exacerbate existing health issues, including cardiovascular and respiratory disease. The following day a wildfire destroyed 90 per cent of the town, killing two people and displacing 1,200 others. The temperature in Lytton, B.C., hit 49.6 C on June 29. Canada’s top weather event in 2021 was British Columbia’s record-breaking heat, according to Environment and Climate Change Canada. A recent World Meteorological Organization report called heat waves the “deadliest meteorological hazard” from 2015 to 2019, affecting people living on all continents, and setting new national heat records in many regions.
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