Cities in Great Britain most vulnerable to extreme heat revealed
Summary
Research shows that Portsmouth, Leicester, Exeter, Bristol, and Nottingham are the cities in Great Britain most likely to face extreme heat by the end of this century. This is mainly because cities with fewer trees, parks, and waterways heat up more than rural areas, causing these urban areas to become "heat islands."Key Facts
- Portsmouth is currently the most vulnerable city to extreme heat and will remain so through the century.
- Cities absorb and hold heat due to concrete, asphalt, and buildings, making them up to 10°C hotter than nearby rural areas.
- The heat vulnerability index analyzed 71 British cities and predicts all will have high heat risk by 2040.
- Nearly two-thirds of these cities could reach the most severe heat levels by 2100.
- Leicester is expected to move from 10th to 4th place in heat vulnerability by the century’s end.
- Areas with low tree cover and green space experience more heat stress; deprived neighborhoods often have less green space.
- The City of London and City of Westminster are among the most heat-retentive areas due to dense building and little greenery.
- Extreme urban heat harms health, comfort, transportation, energy systems, and emergency services.
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