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The Conversation
The Conversation
Environment
Shengjie Liu, Ph.D. Candidate in Spatial Sciences, USC Dornsife College of Letters, Arts and Sciences

Heat risk isn’t just about the highs: Large daily temperature swings can harm human health – maps show who is affected most

Low-income neighborhoods with lots of concrete and few trees can heat up faster than surrounding areas. AP Photo/Richard Vogel

This summer has shown how quickly high temperatures can pose serious health risks, with record-breaking heat waves claiming thousands of lives around the world.

However, it’s not just high and low temperatures that matter. How many degrees the temperature swings within a day – the daily temperature variation – itself poses health risks.

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