Theguardian iconTheguardianSep 9, 2026

Cities in Great Britain most vulnerable to extreme heat revealed

OS index examines which 'urban heat islands' suffer the most – and which cope the best with rising temperatures Portsmouth, Leicester, Exeter, Bristol and Nottingham will be among the cities that warm the most by the end of this century as global heating turns British cities into urban heat islands, according to research.

Cities in Great Britain most vulnerable to extreme heat revealed

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OS index examines which 'urban heat islands' suffer the most – and which cope the best with rising temperatures Portsmouth, Leicester, Exeter, Bristol and Nottingham will be among the cities that warm the...

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OS index examines which 'urban heat islands' suffer the most – and which cope the best with rising temperatures Portsmouth, Leicester, Exeter, Bristol and Nottingham will be among the cities that warm the most by the end of this century as global heating turns British cities into urban heat islands, according to research.

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  • OS index examines which 'urban heat islands' suffer the most – and which cope the best with rising temperatures Portsmouth, Leicester, Exeter, Bristol and Nottingham will be among the cities that warm the...

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