In science, as in many areas of life, communication mechanisms have changed, leading to international networking among researchers. It can be assumed that scientific work is preceded by a prior alignment of research results within a knowledge network. This book addresses the question of the significance of internationally connected research for climate policy. What motives, goals, and interests serve as the starting point for scientific expertise on climate change? Under what conditions does connected science work on solutions to climate issues? How should the interpretation of the problem by the scientific community and the resulting influence of scientific analyses be assessed? What influence does science have on the political debate regarding climate change?.