Concrete and asphalt make cities up to 10 degrees hotter than the rural areas. In Poland, however, there is a persistent impression that greenspace is a nuisance that is best gotten rid of, says Ewa Iwaszuk of the Ecologic Institute in Berlin. She points out that the situation in Germany is better because nature has been considered an indispensable part of the city since the 1990s. She talks about innovative nature-based solutions that can mitigate climate change in cities and explains the introduction of blue-green infrastructure. Monika Sędzierska from the COSMO editorial office moderated the conversation.