Tanja Riekkinen (MA) is a project researcher at the University of Turku. In the History of Winter project, she contributes to the Work Package 3: Cooling and Warming Cities.

Riekkinen's publications include a book chapter on the use of fossil fuels in Finland and a 50-year history of the University of Oulu Academics. Her research interests include energy history and petroculture studies.

In the History of Winter project, Riekkinen and Simo Laakkonen will explore the long-term history of space heating in Finland, examining how the country transitioned from a preindustrial society, characterized by alternating temperatures and darkness, into an industrial society with more stable indoor temperatures and increased light. They will also investigate how these developments gradually began to affect the climate. Additionally, the research will address how people from different socio-economic backgrounds experienced cold.