German cities reveal warmer nights in districts with more non-German residents
Urban heat adaptation will gain in importance as climate change progresses. Researchers at the Karlsruhe Institute of Technology (KIT) have analyzed how sociodemographic factors (nationality, age, and rent) correlate with heat exposure throughout Germany.
German cities have revealed that nighttime air temperatures are significantly warmer in districts with higher proportions of non-German residents. Researchers at the Karlsruhe Institute of Technology (KIT) studied how factors like nationality, age, and rent correlate with heat exposure across Germany. The findings, published in Environmental Research Letters, show that in 84.2% of the analyzed cities, the air was notably warmer at night in areas with a greater share of non-German residents.
However, areas with a higher percentage of residents over 65 were generally cooler. Rent per person did not show a consistent association with temperature differences. The researchers emphasize that these temperature disparities are more pronounced in cities compared to suburban or rural areas but cannot determine the causes behind these differences, leaving questions about socioeconomic, historical, or urban planning factors open for further research.
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