Table 3. Brokers and catalogues. They offer discovery services by harvesting data from existing catalogues. Name URL GEOSS Portal https://www.geoportal.org NextGEOSS https://catalogue.nextgeoss.eu Geo-Cradle http://geocradle.eu/en Centre of EO Research & Satellite Remote Sensing (BEYOND) http://beyond-eocenter.eu GEO Knowledge Hub https://gkhub.earthobservations.org European Environment Agency (EEA) geospatial data catalogue https://sdi.eea.europa.eu/catalogue/srv/eng/catalog.search#/home https://sdi.eea.europa.eu/catalogue/doc/api/index.html https://github.com/geonetwork/core-geonetwork INSPIRE Geoportal https://inspire-geoportal.ec.europa.eu The official portal for European data https://data.europa.eu/en STACIndex https://stacindex.org Ecopotential In-Situ Data Catalogue https://www.ecopotential-project.eu Federated EO Missions Support Environment https://fedeo-client.ceos.org/about IAEA Environment Laboratories https://www.iaea.org International Centre for Integrated Mountain Development https://www.icimod.org CEOS International Directory Network https://idn.ceos.org World Soil Information (ISRIC) https://www.isric.org The World Bank Data Catalog https://datacatalog.worldbank.org/home Planerary Data Access (PANDA) https://panda.copernicus.eu UN Spider Knowledge Portal https://www.un-spider.org Climate-ADAPT indicators https://climate-adapt.eea.europa.eu/en/knowledge/c-a-indicators European Environment Agency (EEA) indicators https://www.eea.europa.eu/ims