Whether terror, nanotechnology, or climate change, the public is often exposed to a rollercoaster of scare news, euphoric innovation reports, dramatizations, and trivializations. The result is simply uncertainty. The jumble of contradictory statements raises questions: What are the real risks in the modern world? How can risks be measured and evaluated? Can early warning systems help to prevent food crises, environmental damage, or natural disasters? This book provides scientifically sound, practical, and politically feasible answers. It focuses on the integration of different disciplines that deal with the multifaceted term "risk" - from the calculation of the probability of occurrence to the human response to risky situations. This is how the first German-language standard work on risk analysis is formed.