International efforts, such as the Paris Agreement, aim to reduce greenhouse gas emissions. But experts say countries aren’t doing enough to limit dangerous global warming.

Since its founding in 1944, the World Bank has evolved from a lender focused on European reconstruction to the preeminent international institution for economic development and poverty reduction.

The UN Security Council is the premier global body for maintaining international peace and security, but it faces steady calls for reform to better meet twenty-first-century challenges.

The Group of Seven (G7) serves as a forum to coordinate global policy, but experts are increasingly questioning the group’s relevance.

The United Nations’ top leadership position has broad authority to steer the organization’s agenda, but its impact has varied widely since 1946.

Responsible for powering the country and its economy, the U.S. energy grid has come under increasing strain due to climate change, and the threat of cyberattacks looms.