World Cup heat risks signal Europe's retrofit market need
As the World Cup final highlights the dangers of extreme heat in outdated stadiums, European businesses face a growing market for retrofitting technologies over air conditioning.
Spain and Argentina will face off tonight at MetLife Stadium in East Rutherford, New Jersey, to decide the FIFA World Cup 2026. The fixture will be played in temperatures forecast to reach 28°C, breaching the threshold at which FIFPRO, the global players' union, mandates enhanced cooling measures.
This final is comparatively mild. Analysis shows more than one in four matches at this tournament experienced dangerous heat, with 27 games exceeding a Wet Bulb Globe Temperature of 28°C. This metric accounts for humidity and is the level at which FIFPRO advises delaying or rescheduling. The tournament coincides with back-to-back heatwaves that pushed global temperatures 1.39°C above pre-industrial averages, exposing how current stadium infrastructure is built for a climate that no longer exists.
The dilemma of how to cool massive venues resonates deeply in Europe, where extreme heat caused 10,000 excess deaths last month. Scientists from the World Weather Attribution (WWA) note such temperatures would have been "virtually impossible" without climate change, sparking a fierce debate across the continent about installing air conditioning.
Relying on air conditioning presents a paradox for European infrastructure and energy markets. The systems worsen the urban heat island effect by trapping and releasing heat from concrete and asphalt, while their refrigerants emit greenhouse gases that accelerate warming faster than carbon dioxide.
Mark Sait, CEO of environmental consultancy SaveMoneyCutCarbon, argues air conditioning "cannot become the default answer to every heat problem" because it pushes demand onto energy grids and drives up running costs. For European investors and construction firms, the alternative presents a clear commercial opportunity: retrofitting.
Upgrading existing buildings is significantly cheaper and greener than demolition. Stadiums and commercial real estate can deploy building-fabric measures like "cool roofs"—reflective coatings that a 2024 study by UCL and the University of Exeter showed could have lowered London’s temperature by 0.8°C during a 2018 heatwave.
Technologies such as solar control glazing, which reflects infrared heat while maintaining natural light, offer similar efficiency gains. "Retrofit should make the stadium perform better before more air conditioning is added," Sait says. "Done properly, it reduces unnecessary consumption, lowers running costs and creates cooler, safer spaces for fans, staff and players."
As climate pressures mount, the infrastructure failures seen at the World Cup serve as a warning for European real estate and venue operators. Sait advises that match scheduling must become part of a safety plan viewed "through a climate-focused lens", but ultimately, retrofitting gives organisers the environmental and economic control they need without crashing the energy grid.
