Cool microclimates play an important role in the protection of biodiversity against climate change, as they enable species adapted to cold conditions to survive in their current habitats and to better disperse to new suitable areas. The research produces information about the occurrence of these habitats in Finland, as well as how changes in land use affect the conditions and distribution of microclimates. The goal of the research is to produce information and new regional data on microclimate variation, which supports nature conservation authorities to develop more effective protection, management and land use plans as well as more ecologically sustainable ways of using natural resources and reducing the harmful effects of climate change on biodiversity.