Open-Earth-Monitor is a Horizon Europe project that will increase European capability to generate timely, accurate, disaggregated, people-centred, accessible (GSM-compatible) and user-friendly environmental information based on Earth Observation data. The project will achieve this by building a cyberinfrastructure anchored in FAIR data principles. Specifically, it will innovate the implementation of original cloud-based solutions to seamlessly integrate in-situ & EO data so that it can produce environmental information at analysis- and decision-ready levels, the implementation of fully-scalable Automated Mapping / AutoML frameworks, user-experience-designed data provision and Apps possibly reaching millions of users across EU and globally.