We can’t understand current geopolitical events without understanding how fossil fuels shaped the 20th century. In this episode of The Active Share, Hugo sits down with Helen Thompson, a professor of political economy at Cambridge University and author of Disorder: Hard Times in the 21st Century, for a conversation about energy—how U.S. shale production created fault lines through the Middle East, Western Europe, and Russia; how decarbonization could drive further change; and how other industries (such as semiconductors) are having a similarly disruptive effect.