40 Degrees Celsius: The New Normal? How Cities Will Survive Summer

Vienna, like many cities, was not built to withstand the increasingly intense heatwaves that are becoming a regular feature of summer. City climatologist Matthias Ratheiser points out that the infrastructure and urban design are ill-equipped for these extreme temperatures, leading to a cascade of problems.

The summer of 2024 served as a stark preview of what lies ahead. Record-breaking heat caused widespread disruptions, including warped railway lines, failures in critical medical equipment within hospitals, and persistent tropical nights where temperatures failed to drop, offering no respite. These are no longer considered isolated incidents but rather the emerging reality of future summers.

Ratheiser, associated with the firm Weatherpark, emphasizes that these conditions are transitioning from exceptional events to the expected norm. The tools and knowledge to begin retrofitting cities for this new climate reality are available. However, implementing these changes requires a substantial urban transformation to ensure cities can survive and function during increasingly hot summers.