Dr. Tobias Orthen is a physicist and economist. He sees himself as a bridge builder between extremes: What does global thinking mean for local action? How can science improve practical life? How can cultures work together? After studying in Kiel, Göttingen and Tokyo, he did his doctorate in Ulm on the question of what rich top emitters gain from working for climate protection and social cohesion. He is a researcher at FAW/n in Ulm, a fellow of the Global Justice Program at Yale University and helped establish Global Energy Solutions.