In PortalU you have various possibilities for searching official environmental information. You are looking for latest news or monitoring data associated to an environmental event? Maybe you want to get more information about intended or passed laws concerning renewable energy? You can search multiple sources simultaneously, including websites, documents, metadata and digital maps with focus on environmental information. PortalU enables you to search in parallel catalogues and environmental databases from the federation, the German federal states ("Länder") and local authorities. Our search engine also discovers resources from the "Deep Web" that can not be found by other search engines. The following features will help you to specify your search: