The paper shows the impacts of climate change in the city of Hannover. Problems with heat load and extreme weather events (heavy rain, summer droughts) are already in existence. In the future, these impacts are expected more often und more extreme. Hannover has dealt with the consequences of climate change at an early stage and has already developed a local adaptation strategy in 2012. The strategy comprises of eight fields of action, which were defined as particularly significant. The article describes the adaptation measures which are implemented in the last years and which are necessary in future to maintain the quality of life for the people living in Hannover.