China’s carbon emissions threaten global efforts to fight climate change. Its broader environmental degradation endangers economic growth, public health, and government legitimacy. Are Beijing’s poli…

U.S. space exploration inspired a generation of students and innovators, but NASA’s role has diminished, and the number of global space competitors is growing.

Antibiotics are facing an existential crisis less than a century after their introduction. Increased bacterial resistance is putting the world at risk of an era in which routine infections are untreatable.

South Africa in the post-apartheid period has registered steady growth, but mounting problems over inequality threaten the continent’s economic engine.