Heat exposes challenges facing Rochdale workers and Britain’s ageing infrastructure

Warm conditions are presenting renewed challenges for workers in Rochdale and across the country today, raising questions about whether climate change, inadequate infrastructure investment or a combination of both has left Britain poorly prepared for increasingly hot summers.

Temperatures in Rochdale are forecast to rise to approximately 27°C during the afternoon, with the hottest conditions expected between 3pm and 5pm. Although that is below the extreme temperatures recorded during previous heatwaves, it can still create difficult conditions inside poorly ventilated offices, factories, warehouses, workshops and vehicles.

Conditions are hotter in parts of southern and south-eastern England, where temperatures are significantly above those being experienced across Greater Manchester. The contrast means Britain is not facing identical conditions everywhere, but the national trend towards warmer and more frequent hot periods is placing increasing pressure on workplaces and public infrastructure.

Office workers can struggle in buildings with large windows, limited ventilation, sealed windows or insufficient cooling. Computers, lighting and large numbers of people can raise indoor temperatures beyond those recorded outside, leaving employees dealing with fatigue, headaches, dehydration and reduced concentration.

The risks are greater for people undertaking strenuous or outdoor work. Construction workers, roofers, landscapers, refuse collectors, delivery drivers, road crews, agricultural workers and utility engineers may be required to perform physically demanding tasks in direct sunlight while wearing heavy clothing or protective equipment.

Heat stress can develop when the body is unable to regulate its temperature effectively. Symptoms can include tiredness, dizziness, confusion, headaches, excessive sweating, muscle cramps and nausea. More serious cases can lead to heat exhaustion or heatstroke, requiring urgent medical attention.

There is no fixed maximum legal workplace temperature in Britain. The Health and Safety Executive says this is because workplaces vary considerably, with some industries naturally operating in hotter environments. Employers must nevertheless comply with health and safety law, maintain a reasonable working temperature, provide clean and fresh air and assess risks to employees.

For outdoor and physically demanding roles, sensible precautions can include access to drinking water, additional breaks, shaded rest areas, lighter clothing where safety permits and rescheduling the hardest work away from the hottest part of the day. Employers may also need to monitor staff for signs of heat stress and allow workers time to become accustomed to unusually warm conditions.

Whether Britain’s difficulties can be blamed on government underinvestment or climate change is not an either-or question.

Human-driven climate change is increasing the likelihood and severity of hot weather in Britain. Official figures published by the Office for National Statistics show that the average number of hot days during the decade from 2015 to 2024 was nearly double that recorded between 2005 and 2014. The most recent decade was also warmer than previous reference periods.

However, climate change does not explain why so many British workplaces, schools, hospitals, homes and transport systems struggle when temperatures rise. Much of the country’s built environment was designed for a historically cooler climate, while investment in ventilation, shading, insulation, urban trees and other forms of heat adaptation has not consistently kept pace with the changing risk.

The Climate Change Committee has repeatedly warned that Britain is inadequately prepared for the effects of a warmer climate. Its 2026 assessment said hotter heatwaves could eventually cause the overwhelming majority of existing homes to overheat without sufficient adaptation. Although that warning focused primarily on housing, many of the same construction and ventilation problems affect workplaces.

Successive governments of different political parties have therefore inherited and contributed to the problem. Britain’s exposure has developed over decades through ageing buildings, inconsistent adaptation policies and a planning system that has not always treated overheating as a central design concern.

The economic consequences are also significant. Experimental analysis by the Office for National Statistics estimated that hot days caused an average annual productivity loss of approximately £1.2 billion between 1998 and 2021, even after accounting for adaptation. Workers generally complete tasks more slowly in excessive heat, while employers may face disruption, additional breaks, equipment problems and higher cooling costs.

Urban areas can be particularly vulnerable because roads, roofs, concrete and other hard surfaces absorb heat during the day and release it slowly. Trees, parks, rivers and other green or blue spaces provide natural cooling, but their availability varies considerably between communities.

The challenge facing the Government is therefore twofold. Reducing greenhouse-gas emissions remains necessary to limit the severity of future warming, but adaptation is also required because some further climate change is already unavoidable.

That means improving building standards, retrofitting unsuitable properties, expanding tree cover, protecting green space and ensuring schools, hospitals, care facilities, transport networks and workplaces can remain safe during hot weather. Employers must also recognise that heat planning can no longer be treated as an exceptional response reserved for record-breaking temperatures.

Today’s weather in Rochdale is warm rather than unprecedented. Nevertheless, it provides another indication of a challenge that will become increasingly familiar. Climate change is making hot periods more likely, while inadequate preparation determines how disruptive and dangerous those periods become.

The evidence suggests both factors are responsible. The climate is changing, but Britain’s failure to adapt its workplaces and infrastructure quickly enough is increasing the burden placed on office staff, labourers and those whose jobs cannot simply be moved into an air-conditioned room.