Understanding urban heat: climate knowledge for the next generation of urban heat islanders

Heatwaves are among the most direct and health-threatening consequences of climate change, but they do not affect everyone equally. In cities, heat stress is more intense than in rural areas because buildings, roads, and parking lots create so-called heat islands that amplify natural heat. During the day, the sun heats up concrete and other grey infrastructure. At night, this heat is slowly released, keeping nighttime temperatures high. As a result, people cannot properly recover from the constant heat. Their ability to concentrate, work, and learn declines, and they might suffer serious health issues.

Studies show that dozens of people in Estonia already die prematurely each year due to heat. The most vulnerable groups are the elderly, pregnant people, those with chronic illnesses, and children. Climate change is increasing the likelihood of longer, more intense heatwaves, making it essential to prepare cities and their residents to cope with these challenges.

The project “Understanding urban heat: climate knowledge for the next generation of urban heat islanders” aims to make the seemingly invisible heat risk visible, together with schools and communities. SEI Tallinn will install indoor temperature sensors in three schools in Tallinn. In addition, young people will use thermal buttons to explore their school surroundings and map hotter and cooler areas. Students will then compare the collected data, analyse different urban environments, and learn about heat islands. For example, they can compare an asphalted schoolyard or an artificial-surface sports field with a green, vegetated area, as well as classrooms on different floors or facing different directions. The project focuses on high school students in Tallinn’s schools.

The project also includes a communication campaign aimed at the wider community to raise awareness about heatwaves, their impact on health, and how individuals can better protect themselves and their living environments.

Funding

Project activities are supported by the European Union and the Estonian Centre for International Development (ESTDEV) through Mondo’s NOPLANETB project. The content is the sole responsibility of the Stockholm Environment Institute Tallinn Centre and does not necessarily reflect the views of the European Union or ESTDEV.