A new heat vulnerability index from Ordnance Survey highlights Portsmouth as the city most at risk of extreme heat, both currently and in the future. The analysis predicts that by 2040, all 71 cities studied will experience high heat vulnerability, with Portsmouth, Westminster, and Leicester among those facing the most severe impacts by the century's end.
The study emphasizes the role of urban design in heat retention, noting that areas with less green space and waterways are more susceptible. Milton Keynes is identified as one of the cities best equipped to handle rising temperatures, ranking low in heat vulnerability.
As cities brace for extreme heat, urban planners should prioritize green spaces and waterways to mitigate risks. Watch for initiatives in Portsmouth and Leicester as they adapt to rising temperatures, and consider how local policies may evolve to enhance urban resilience.