Home / Environment / Europe Bakes: Cities Fuel Deadly Heat Crisis
Europe Bakes: Cities Fuel Deadly Heat Crisis
27 May
Summary
- Urban heat islands trap heat between buildings and asphalt.
- Higher city temperatures are linked to thousands of premature deaths annually.
- Greening cities with trees and reflective surfaces can lower temperatures.
Cities across Europe are experiencing the dangerous effects of the urban heat island phenomenon, where heat becomes trapped between buildings and surfaces like asphalt and concrete. This effect causes urban centers to be significantly hotter than surrounding rural areas, particularly at night. For instance, London and Paris can be around 4C warmer.
This trapped heat poses serious health risks, leading to conditions like heatstroke and respiratory problems. EU research linked higher city temperatures to 6,700 premature deaths in the summer of 2015 alone, with heat-related fatalities increasing since then.
Combatting this requires innovative solutions beyond air conditioning, which contributes to global warming. Strategies include using lighter, reflective materials for roofs and roads, painting surfaces white or grey, and incorporating permeable materials.
Nature-based solutions are also crucial. Planting trees can lower temperatures by 2C to 10C and provide shade. Rooftop gardens, vertical gardens, and adding water surfaces can further mitigate heat. Reducing traffic and pollution also plays a vital role in cooling urban environments.
