Ambitious diplomatic, scientific, and organizational strategies were employed to make this arena for cooperation work for global change. Under the umbrella of the systems approach, East-West scientists co-produced computer simulations of the long-term world future and the anthropogenic impact on the environment, using global modeling to explore the possible effects of climate change and nuclear winter. Their concern with global issues also became a vehicle for transformation inside the Soviet Union. The book shows how computer modeling, cybernetics, and the systems approach challenged Soviet governance by undermining the linear notions of control on which Soviet governance was based and creating new objects and techniques of government.