Climate Adaptation and Trees in Hamm: How the City is Fighting for More Green

Climate Adaptation and Trees in Hamm: How the City is Fighting for More Green

The climate crisis is no longer a future vision, but a current field of action that cities like Hamm face daily challenges with. In March 2026, the city of Hamm addressed a wide range of issues related to climate protection, biodiversity, and green space planning. Particularly notable is the 1000-Trees Program, designed as a response to rising temperatures and declining biodiversity. At the same time, it also becomes clear that climate protection is not only about political goals, but also binds financial resources — posing new challenges for Hamm.

The 1000-Trees Program: Green for a Cooler Future

With the 1000-Trees Program, Hamm is sending a clear signal for climate-resilient urban development. The goal is to plant 1,000 additional trees in the city by 2030. The trees are not to be distributed randomly, but based on clear criteria: climate resilience, protection of vulnerable population groups, and enhancement of public space.

The program is not only a symbolic project, but a concrete instrument for microclimate cooling, biodiversity promotion, and heat island reduction. The city emphasizes that the plantings will be transparently documented — via a municipal portal — and presented annually in a report to the Climate and Environment Committee. In addition, citizen participation is a central component of the program: site selection involves the local population to strengthen acceptance and local engagement.

Implementation of the program is supported by a dedicated special column for tree care, showing that Hamm thinks long-term about the maintenance of trees — not just their planting.

Climate Protection and Budgetary Realities: A Delicate Balance

In addition to the 1000-Trees Program, Hamm also had to deal with budget cuts in the nature conservation area. For example, 20,000 euros annually were cut from the budget for species protection measures. At the same time, the city emphasizes that it still wants to make effective contributions to the preservation of biodiversity — for example through protection measures for endangered species such as the nightjar, the nightingale, or the beaver.

The Species Protection Assessment (ASP) and the FFH Compatibility Assessment are a central part of the planning, especially for new leisure facilities. For example, the 43rd amendment to the land use plan for leisure use in Haaren was approved, which provides for de-sealing and nature-friendly design. Green roofs, permeable materials, and the observance of breeding bird protection periods are key elements here.

The city must therefore balance ecological goals and financial feasibility. This is also evident in the Investment Plan 2026–2030, in which Hamm wants to invest 333.5 million euros — including 229 million euros alone in the construction sector. Climate protection measures, such as the renovation of buildings or the promotion of renewable energies, are explicitly listed as climate projects.

From the Heat Action Plan to the Sponge City: Climate Adaptation as Everyday Practice

The city of Hamm has not only committed to long-term strategies such as the Heat Action Plan, but has also implemented concrete measures. The Heat Action Plan is part of the Integrated Climate Protection Concept and aims to make Hamm climate-neutral by 2035.

In March 2026, the monitoring structures for the Heat Action Plan were also established. Three components form the basis: the implementation of measures, the evaluation for optimization, and the collection of health data. This structure enables the plan to be continuously reviewed and adapted to new challenges.

Another focus is the development of climate-adapted open spaces, such as in the Lippepark. Here, not only shading is considered, but also biodiversity and nearby recreation. The renaturalization of the Herringer Bach is an example of the implementation of the Sponge City Principle, which regulates heavy rain and flooding in a natural way.

On the Way to a Greener Future

The measures adopted by Hamm in March 2026 show how seriously the city is taking the climate crisis. From the planting of 1,000 trees to the development of climate-resilient open spaces and investments in renewable energy — Hamm is relying on a variety of instruments to prepare for the future.

At the same time, it also becomes clear that climate protection is not only about political goals, but also binds financial and organizational resources. The city must therefore balance ecological ambitions and budgetary realities — a challenge that many cities in Germany are facing today.

The coming years will show whether Hamm is on the right path with these measures — and whether the combination of green space, climate adaptation, and citizen participation can actually help make the city more resilient to the effects of climate change.