The world faces major threats resulting from the expansion of human activities, among them deterioration of the environment; biodiversity loss; depletion of natural resources through excessive consumption; and in certain regions, destabilization of economies and the social order. Long-term threats to the sustainability of our planet include droughts, degradation of water quality, global warming, nuclear waste disposal, nuclear plant side effects, and the manipulation of life itself. These threats are accompanied by the dangers of natural and human-made disasters at both microscale and macroscale. How should we intensify our efforts to reduce the number and effects of geophysical, technological, and human-made disasters and to maintain sustainability over the next decades? A workshop on Risk Science, Society, and Sustainability, organized by the Commission of the International Union of Geodesy and Geophysics (IUGG) on Geophysical Risk and Sustainability and the European Association for Promotion of Science and Technology, tried to answer the question.