<p>On May 22, 2020, when International Biodiversity Day was celebrated, Murray Gray and Zbigniew Zwoli&#324;ski independently wrote an email to Jos&#233; Brilha with a proposal to make efforts to establish the International Geodiversity Day (IGD). This was on the eve of the Oxford Geoheritage Virtual Conference (OxGVC) launch. Therefore, at the end of the conference, a declaration of establishing the IGD was prepared, which was supported by over 600 participants from over 60 countries. Virtual PICO presents further and ongoing scientific, organizational and diplomatic efforts to proclaim the IGD: starting from the Oxford Declaration, through letters of support from 108 individuals and international and national professional earth science nature conservation organizations and the International Union of Geological Sciences to Natural Sciences Sector &#8211; Division for Earth and Ecological Sciences UNESCO and Executive Board of UNESCO.</p><p>The proclamation of an International Geodiversity Day would provide an annual reminder of the essential role of geodiversity for human well-being. It provides the foundations and habitats for all living things. It is the source of materials that build our towns and cities; it provides our energy resources, including renewable energy and the materials mined to manufacture wind turbines and solar panels; it allows us to bury our waste, provides us with freshwater and attenuates our pollution; it helps us to understand and predict natural hazards, it inspires our artists and provides us with incredible landscapes from mountains to coasts. Geodiversity gives us evidence of past climate and landscape changes and their causes, and therefore helps us to understand and plan for the impacts of future environmental changes.</p>