“Part of the problem is that many buildings, highways, and other infrastructure in Europe are old and built with outdated temperature extremes in mind, said Mikhail Chester, an associate professor of engineering at Arizona State University. They simply can’t tolerate the new normal, he said. Hence things like railway fires in London.
Cities like Dubai and Phoenix, Arizona, in contrast, can withstand higher temperature extremes because their infrastructure was built more recently and with heat in mind. While these places may face issues related to water and energy usage, 100-degree weather isn’t as big of a problem for them, Chester said.”
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“Air conditioning is relatively rare in most of northern Europe, especially compared to the United States. The same is true of the London Tube — only 40 percent of the train network has air conditioning, and authorities warned commuters in the British capital to carry water with them if they traveled.”
https://www.vox.com/2022/7/20/23270092/europe-uk-heat-wave-roads-trains-climate-change