First published in 1999, this book describes what the International community of scientific institutions could do to reverse this trend, by pooling its know-how and resources in International and interdisciplinary working groups and standing committees, by preparing options for action and by standing the possibilities for overcoming the political and economic obstacles to the implementation of expert advice. The reasons are given why neighboring groups of people sooner or later start fighting each other unless certain conditions are fulfilled. These conditions are enumerated. Historical examples are presented. Since lack of mutual trust, often based on inherited enemy images, is at the roots of many conflicts is shown how trust among former opponents can be created by working on joint projects, particularly when both sides are threatened by the same danger. In previous history this danger was often a common enemy. Today we must learn that all of mankind is threatened by environmental and other global problems which can only be mastered by joint efforts, forgetting the enmities of earlier generations. Furthermore, it is explained that many catastrophes could be avoided if risks were properly assessed and taken seriously and necessary precautions not avoided for financial reasons, just hoping for the best.