Global warming doesn’t affect everyone the same way, especially in big cities. Some neighborhoods are far more vulnerable to extreme heat than others. Lower elevation makes them vulnerable to flooding. More pavement soaks up sunlight during the day and radiates heat like a furnace at night. Fewer trees mean less shade. During a heatwave, these areas, known as urban heat islands, heat up faster and stay hot longer. In some cities, the temperature in a heat island may be as much as 20 degrees Fahrenheit hotter than in other parts of the city, with devastating consequences for residents, who are often more likely to belong to marginalized communities.
As you might suspect, this is no accident.
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