Despite the sharp exchanges between the U.S. and Iranian presidents at the United Nations, new negotiations may not be so far-fetched as sanctions intensify against Tehran.

A recent study by noted climate scientists is particularly bad news for the planet’s most vulnerable regions, including the Arctic and small Pacific islands. 

Last week’s mail bombs and synagogue attack have reignited a heated discussion of hate crimes and terrorism in the United States. Definitions matter in this debate.

The region’s fast-growing but fragile democracies have been susceptible to strongmen and autocratic-leaning populists in recent years, propelled by concerns over inequality, crime, and dysfunctional …

Jair Bolsonaro has vowed to overhaul Brazil’s economy and align the country more closely with the United States, with uncertain implications for its relations with China.