Low water levels have led to a traffic jam at one of the world’s busiest maritime passages. The bottleneck demonstrates how accelerating climate change is threatening global supply chains.

The Obama-era policy protecting young undocumented immigrants from deportation has faced a raft of legal challenges. It could be up to the Supreme Court to decide the program’s fate.

Queen Elizabeth II is the monarch of fourteen countries in addition to the United Kingdom. Barbados’s transition to a republic has revived debate over the future of the Crown.

U.S. officials have preserved NATO unity in the face of Russian military threats, but they have not yet defined a clear negotiating agenda—or put Moscow on the rhetorical defensive.