International Geodiversity Day: from Grassroots Geoscience Campaign to UNESCO Recognition

Abstract The chapter documents the process of proclaiming of the International Geodiversity Day as a grassroots initiative of the Earth science community for the benefit of our entire present civilisation and for future generations. The huge support that this initiative gained among scientists around the world contributed to the rapid circulation of documents necessary to establish an international day at the UNESCO forum. The chapter presents the timeline of this process of proclaiming of the International Geodiversity Day, its implications and the course of the first celebrations in 2022.