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Extreme Heat: Preparedness

I thank the hon. Member for that point. I will come to the question of how we retrofit buildings and how we ensure that new buildings of whatever type, including schools, are fit for purpose for the large numbers of mainly young people who use them. His points are well made.

During heatwaves, schools can become unsuitable for learning, hospitals struggle to provide safe conditions for patients and staff, and care homes become hazardous for some of the most vulnerable members of society. The problem does not end when temperatures fall; many buildings retain heat long into the night. One constituent told me her home reached 42.5°, and her young son required urgent care after suffering a severe asthma attack induced by extreme heat in the flat.

The Climate Change Committee warns that, by 2050, 92% of existing homes could overheat during summer heatwaves if we do not have a full programme of adaptation measures. Most of the homes that we will live in then have already been built now, which means that national retrofit programmes are essential to keep people safe, including those that deliver shading, cooling, ventilation and green infrastructure. At the same time, every new home, school, hospital and workplace should be designed for a hotter climate through passive cooling measures such as external shading, ventilation, green roofs and reflective materials. Retrofitting later is far more expensive than building resilience from the outset, and every building constructed today should be designed for the climate we are moving towards, not the one we have left behind.

As well as changes to the built environment, we must also consider making social changes. We need to question whether the summer period will be the right time for exams in future. We must look to protect young people and help them to do their absolute best in exams, in whatever conditions are comfortable for them to work at their best.