Two years ago, British Columbia suffered one of the worst wildfires in the Canadian province’s history, which consumed 1.2 million hectares and displaced 65,000 people. The 2017 blaze was so intense that scientists are using it to model the climate conditions that might be created in the fallout of nuclear war, according to a study published on Thursday in Science.

—Becky Ferreira, in “Wildfires Are Now So Bad That Scientists Are Using Them to Study Nuclear War”