Just Nature is the EU Horizon 2020 project working on the motto that “Everyone has the right to ecological space and the duty of not constraining that of others; to live and help live, work and play in climate-resilient and sustainable cities and beyond” The overall objective of JUSTNature is the activation of nature-based solutions (NbS) by ensuring a just transition to low-carbon cities, based on the principle of the right to ecological space.