Britain has faced train cancellations, travel disruption and record-breaking hot weather amid a spring heatwave, with experts raising the alarm that the country will not be able to cope with future spells of extreme heat.

The record for the hottest day in May has been broken again, with the mercury hitting 35.1°C at Kew Garden on Tuesday.

It has exceeded Monday’s provisional all-time hottest meteorological spring temperature of 34.8°C, also recorded at the south-west London location.

‘We’re not prepared for this’

Despite warnings that the UK is set to experience extreme heat more often as greenhouse gases trap heat and prevent the planet from cooling, experts say infrastructure, policy and attitudes are not changing fast enough.