A Global Catastrophic Risk Is One With The Potential To Wreak Death And Destruction On A Global Scale. In Human History, Wars And Plagues Have Done So On More Than One Occasion, And Misguided Ideologies And Totalitarian Regimes Have Darkened An Entire Era Or A Region. Advances In Technology Are Adding Dangers Of A New Kind. It Could Happen Again. In Global Catastrophic Risks 25 Leading Experts Look At The Gravest Risks Facing Humanity In The 21st Century, Including Asteroid Impacts, Gamma-ray Bursts, Earth-based Natural Catastrophes, Nuclear War, Terrorism, Global Warming, Biological Weapons, Totalitarianism, Advanced Nanotechnology, General Artificial Intelligence, And Social Collapse. The Book Also Addresses Over-arching Issues - Policy Responses And Methods For Predicting And Managing Catastrophes. This Is Invaluable Reading For Anyone Interested In The Big Issues Of Our Time; For Students Focusing On Science, Society, Technology, And Public Policy; And For Academics, Policy-makers, And Professionals Working In These Acutely Important Fields.