![]() The physical mechanism of cooling, like what the trees provide, is among Ziter's areas of expertise. ![]() "We often say maps of trees are maps of race and wealth," said Carly Ziter, an associate professor of biology at Concordia University in Montreal who specializes in urban ecology, in reaction to CBC's results. But according to experts, the two are related: when the surface temperature is high, the air temperature is expected to be high as well. This estimated temperature captured from space differs from the air temperature logged by weather stations. ![]() This is why CBC News used satellite imagery to pinpoint the areas with the hottest land surface temperatures across the biggest Canadian cities. But a street surrounded by parking lots and concrete apartment buildings could be a scorching hell.Īs global warming increases the frequency and intensity of heat waves across the country, knowing where heat islands are in our cities - and who lives in them - becomes a crucial public health issue. A hot and sunny afternoon in a neighbourhood wrapped in mature trees and with canopy cover may feel quite pleasant. When your weather app tells you it's going to be a hot day, you might think it'll be a hot day for everyone in your city.īut street configuration, building materials, the presence of vegetation and closeness to a body of water significantly impact how city residents experience the weather.
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