Formed in Brussels (Belgium) on 28 July 1919, the International Union of Geodesy and Geophysics (IUGG) celebrates its 100th anniversary in 2019. The centennial year marks an important milestone for IUGG. Since its inception as a union of international scientific associations, IUGG has developed into a prominent scientific organizations promoting Earth and space sciences worldwide in the complicated political, economic and scientific landscapes of the 20th and the beginning of the 21st centuries.

Our mission is to advance, strengthen and promote further Earth and space sciences for the benefit of humanity, through international research cooperation and education and to communicate the knowledge to governments and policymakers. For the decades ahead, IUGG envisions a future Earth that is environmentally sustainable and where societies are resilient against natural hazards.

We celebrate the IUGG centennial not only to remind geoscientists how important international scientific cooperation is and how IUGG science and science diplomacy have developed over the last century, but also to think together about future scientific development, international scientific initiatives, and solutions to the urgent problems of society, especially to those related to the 2030 Agenda for Sustainable Development. We are looking at the past to develop a new future for Earth and space sciences and to promote science for the benefit of all.

We hope all visitors to the website, especially IUGG scientists from all nations and geoscientific disciplines, will enjoy a wonderful 100-year journey through space and time to appreciate the work of several past generations of Earth and space scientists for the development of international scientific cooperation.

Michael Sideris, IUGG President
Alik Ismail-Zadeh, IUGG Secretary-General