The conference in Poland will be a major test of the world’s collective political will to fight global warming. Following through on promises made in Paris will not be easy.

A high level of coordination suggests the perpetrators had substantial expertise, possibly drawn from a foreign-based terrorist group.

Prime Minister Narendra Modi’s Hindu nationalist party resoundingly won the general election following a divisive campaign, but it is not yet clear how the results should be interpreted.

With Emperor Akihito’s historic abdication approaching, here’s a look at his accomplishments and what to expect from the next emperor, Crown Prince Naruhito.