Hydraulic fracturing has unlocked huge reserves of shale gas and oil, transforming the energy outlook in the United States and the world, even as local opposition and falling world prices threaten th…

The United States is the world’s top producer of oil and natural gas. Its decision to either continue at this pace or curb production to achieve its climate goals will have global consequences.

The European Union has navigated a thicket of external and internal crises in recent years, including mass migration and Brexit. What are the union’s core institutions, and what roles do they play?

Russian leaders have watched with mounting resentment as the transatlantic alliance has nearly doubled its membership since the end of the Cold War. President Vladimir Putin has drawn a red line in U…

The threat of climate change and the rise of China have prompted renewed debate about the U.S. government’s role in shaping the economy.