The SmartOpenData project aims to integrate heterogeneous environmental data from different initiatives and projects into open linked data for environment protection in smart regions. The project is funded by the European Commission and involves 16 European organizations. It will develop a smart open data architecture and apply semantic web technologies to fuse, harmonize, and integrate environmental data and metadata. This will be demonstrated through several pilots on topics like agroforestry, biodiversity, water monitoring and forests. The goals are to promote data sharing among public bodies and define business models for SMEs based on innovative services using linked open environmental data.