It happens in the city – the same goes for climate adaptation. Cities are particularly vulnerable to the effects of climate change. Surfaces in the urban areas tend to warm faster than those of the surrounding rural areas. During the night the temperature differences are even higher, as cities are unable to cool down. More intense rainfall can flood cities’ drains, creating greater risks of floods. Mitigation of the urban heat island effect becomes more and more important and can be accomplished through the use of green and blue. This doesn’t only tackle climate change effects, but also strengthens the biodiversity and liveability of a city. In the densely built city of Groningen, it is mainly the small-scale greening that can lead to large effects.