Repeated summer heatwaves have driven classroom temperatures across the United Kingdom to dangerously high levels, forcing thousands of schools to close and leaving parents, teachers, and governors scrambling for solutions. School WhatsApp groups have been buzzing with urgent discussions as communities try to find ways to keep children safe during extreme weather events that are becoming increasingly common. Experts warn that while medium-term action from government and local authorities is essential, there are steps families and schools can take during the holidays to help mitigate the immediate risks.
The situation has become critical in many English schools, where buildings designed for a cooler climate are ill-equipped to handle temperatures that have repeatedly exceeded 30 degrees Celsius indoors. Pupils have been sent home, lessons disrupted, and in some cases children have suffered from heat exhaustion. Teachers report that classrooms become unbearable by midday, with no effective ventilation or shading. The problem is compounded by the fact that many schools are located in urban heat islands, where concrete and asphalt absorb and radiate heat, making conditions even worse.
In response, parent-teacher associations and school governors have begun exploring low-cost, practical measures that can be implemented quickly. One proposal gaining traction is the use of reflective white paint on school roofs and walls, which can reduce surface temperatures by reflecting sunlight away from buildings. Another is the strategic planting of trees and climbing plants around school grounds to provide natural shade and cooling through evapotranspiration. Some schools are also considering installing temporary shading structures, such as awnings or shade sails, over playgrounds and outdoor classroom areas.
Air conditioning remains a more expensive and energy-intensive option, but some schools are investigating the feasibility of installing efficient units in key areas like classrooms, libraries, and staff rooms. However, the upfront costs and ongoing electricity bills are significant barriers, particularly for schools already facing budget constraints. Furthermore, air conditioning contributes to carbon emissions if powered by fossil fuels, which raises concerns about the long-term environmental impact. Experts emphasise that any cooling solution must be part of a broader strategy to make schools more resilient to climate change, rather than a temporary fix.
The debate over how to cool schools has also highlighted the need for government intervention. Campaign groups and teaching unions have called on the Department for Education to provide dedicated funding for heat adaptation measures, including insulation, reflective coatings, and green infrastructure. They argue that it is unfair to expect already-stretched schools and parent communities to bear the financial burden of protecting children from heat. Some local authorities have begun pilot projects, such as planting trees in school playgrounds or retrofitting buildings with cool roofs, but progress is slow and patchy.
During the summer holidays, parents and teachers can take several preparatory steps. These include checking the condition of windows and blinds, installing temporary fans or portable air coolers, and ensuring that water fountains are working properly. Schools can also review their heatwave policies, including procedures for early closures and remote learning on extreme heat days. In the longer term, experts recommend that all new school buildings be designed with passive cooling principles, such as natural ventilation, thermal mass, and shading. Retrofitting existing buildings with these features is more expensive but could be phased in over time.
The challenge is not unique to the United Kingdom. Countries across Europe and North America are grappling with similar problems, and some have introduced national programmes to adapt schools to higher temperatures. In France, for example, the government has allocated funds for installing green roofs and tree planting in schoolyards. In the United States, local districts have used federal grants to upgrade HVAC systems and install cool roofs. UK advocates argue that the government should study these examples and develop a comprehensive national heat resilience plan for all public buildings, especially schools.
As the climate continues to warm, the question of how to keep schoolchildren safe during heatwaves will only become more urgent. While temporary measures can help in the short term, the consensus among experts is clear: without sustained investment and policy action, thousands of pupils will continue to face health risks and disrupted education. The conversations happening now in school WhatsApp groups may be informal, but they reflect a growing determination among parents and teachers to demand change, and to take whatever steps they can to protect their children from the escalating impacts of extreme heat.
