EditorialStudents use their flashlights and smartphones during a blackout at their school?s shelter as an air raid siren goes off in Kyiv, Ukraine, on Dec. 21, 2022. (Laura Boushnak/The New York Times)
EditorialGregor Ranz, left, uses a morning skinny dip in a lake instead of a shower to start his day, near his home in Bennemühlen, Germany, on Oct. 10, 2022. (Valentin Goppel/The New York Times)
EditorialGregor Ranz, left, uses a morning skinny dip in a lake instead of a shower to start his day, near his home in Bennemühlen, Germany, on Oct. 10, 2022. (Valentin Goppel/The New York Times)
EditorialResidents of a high-rise building used mobile phones to illuminate their path as descended the stairs in the dark during a blackout in Johannesburg, South Africa, on July 20, 2022. (Joao Silva/The New York Times)
EditorialStagehands tie a blackout curtain to a beam on the final day of performances at the Metropolitan Opera in New York, June 11, 2022. (Justin J Wee/The New York Times)
EditorialSmoke rises from the site of a Russian missile attack in the western city of Lviv, Ukraine, on Tuesday evening, May 3, 2022. The strike damaged power stations in the city, causing a blackout in parts of the city. (Finbarr O'Reilly/The New York Times)