Solar energy is the world’s cheapest and fastest-growing power source, but its rise is in danger of stalling. Varun Sivaram argues that realizing solar's potential will require innovation—creative fi…

CFR President Richard N. Haass argues for an updated global operating system to address challenges from terrorism and the spread of nuclear weapons to climate change and cyberspace.

Stewart Patrick argues that the United States can protect its sovereignty while advancing American interests in a global age. He clarifies what is at stake in the sovereignty debate, arguing that the…

A rising India wants a seat at the table of global powers, and is ready to set its own terms on everything from defense to climate to trade. Ayres considers how a fiercely independent India seeks its place as a leading power, and how the United States should respond.