World leaders are meeting at the COP30 this week to discuss climate. The U.S. was not part of this meeting. Somini Sengupta, our international climate reporter, discusses what this absence means.

David A. Fahrenthold, an investigative reporter, describes the struggles of the Sierra Club, one of the largest environmental groups in the U.S. The group has lost about 60 percent of its supporters since 2020.

President Trump has threatened to send troops to Nigeria, where he says Christianity faces an “existential threat,” an accusation that Nigeria has denied. Ruth Maclean, our West Africa bureau chief, describes how the violence in Nigeria is affecting people of all religions, not only Christians.

Practitioners of an annual ritual to clean deceased relatives’ bones are grappling with a new challenge: tourists. Jack Nicas, our Mexico City bureau chief, visits Pomuch, a town in Eastern Mexico that celebrates Día de Muertos unlike any other place.

What’s the main goal of the U.S. military buildup in the Caribbean, and who in the Trump administration is behind it? Anatoly Kurmanaev, a New York Times reporter who covered Venezuela, discusses with Katrin Bennhold what we know and don’t know.