A Tree Registry as a key driver of climate adaptation in Hamburg

Hamburg uses a public digital tree registry to strengthen climate adaptation and urban resilience. By mapping and monitoring over 230,000 street trees, the city supports targeted maintenance, protects mature trees, and guides future-proof planting. Integrated with climate strategies, the registry improves planning, transparency, and long-term urban cooling.

The city of Hamburg launched its first climate adaptation action plan in 2013, followed by the Climate Plan (2015) and Climate Adaptation Transformation Path (2019).  

The 2020 Climate Protection Law mandates sector-specific measures to achieve climate neutrality by 2045. In 2025, Hamburg adopted a comprehensive climate adaptation strategy involving multiple sectors and local stakeholders to prepare for ongoing climate impact.

Read the full article here:  A Tree Registry as a key driver of climate adaptation in Hamburg | EU Covenant of Mayors