Tallinn

Estonia

Twin city
National Mission Ecosystem Estonia
Population 457k
City Area 159 km²
City active since December 2023

Tallinn is the capital of Estonia, located on the Baltic Sea and characterised by a compact urban form, a well-preserved historic centre and a rapidly developing digital economy. The city has a cold temperate climate, with long winters and mild summers, and is increasingly experiencing the impacts of climate change through rising temperatures, changing precipitation patterns and coastal risks such as sea-level rise and storm surges.

As a growing capital, Tallinn faces the challenge of reducing emissions while supporting economic development and urban expansion. Climate action is closely linked to how the city manages mobility, energy use and new development, with a focus on integrating sustainability into planning and digital innovation.

The city has prioritised sustainable mobility, energy efficiency and the transition to cleaner energy systems. Investments in public transport, electrification and smart city solutions are helping to reduce reliance on private cars, while efforts to improve building performance and expand renewable energy contribute to emissions reduction.

At the same time, Tallinn is strengthening its approach to climate adaptation, particularly in coastal areas and urban infrastructure. Through collaboration between the municipality, businesses and research institutions, the city is working towards climate neutrality while leveraging its strengths in digitalisation to support more efficient and responsive urban systems.

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