Environmental change is increasingly becoming a fundamental policy issue and climate change is questioning the essence of policy decisions. Therefore, these changes are leading to new form of governance that goes beyond the traditional national and regional boundaries. The development of environmental diplomacy, for example, modifies traditional international alliances and underline even more the importance of scientific knowledge in multilateral negotiations and decisions. More can be done, and more will be done by international political- policy sciences in the coming years. Despite limited attention thus far, the policy scientists are in a strong position to address the many important issues raised by global environmental change. This roundtable wants to address three questions: What feasible strategies can nation states adopt today to respond to the environmental challenges? What role can civil societies play in redefining world governance over these issues? How can changes at the global scale satisfy the needs and aspirations of human beings toward a better quality of life?