Europe’s sweltering summer has focused attention on its building stock. Responding to the continent’s 40 degree Celsius (104 Fahrenheit) temperatures means cutting carbon emissions from gas heaters, while rolling out ways to efficiently cool residences and offices amid an “era of global boiling”. What may be less immediately obvious is that heat pumps are the best way to do both.
A person cools off at the Piazza del Popolo, during a heatwave across Italy, as temperatures are expected to rise further in the coming days, in Rome, Italy July 18, 2023. REUTERS/Remo Casilli
Continuing to burn gas in winter and use inefficient air-conditioning units in summer is unsustainable. The former helps explain why heating and powering buildings account for 10 billion tonnes of carbon dioxide emissions annually,to the International Energy Agency, or about a quarter of the global total. The electricity required to cool a more populous planet by 2050 during increasingly hot summers, meanwhile, could nearly triple to 5,800 terawatt-hours, the IEA reckons.
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