With 309,721 inhabitants, Mannheim is the second largest city in the Baden-Württemberg region of Germany. Over 1,800 hectares of forest surround the city and with the mission statement "Mannheim 2030", the city is implementing the 17 SDGs of the United Nations at the local level. In particular, the city is focusing on SDG 15, "Manage forests sustainably" and "Halt biodiversity loss". As a Local Green Deal pilot city, Mannheim also supports the EU-Green Deal field of action, "Preserving ecosystems and biodiversity" with concrete agreements. The city's vision for their forest is to develop a healthy, ecologically valuable and climate-stable mixed forest. Mannheim's forest invites recreation, provides habitat for species and contributes to the city's CO2 neutrality through sustainable wood use. Pine forests in Mannheim, that are not adapted to the climate, are being converted into near-natural, multi-level mixed deciduous forests. The focus of all forestry activities is the long-term and permanent preservation of the recreational forest, taking into account the protection of species. Areas are planted where pines are dying and where there are not enough climate-stable tree species to expect natural regeneration of suitable tree species.