On May 16, Mexico's education ministry cancelled schools in the capital and surrounding areas due to elevated levels of air pollution. Weather conditions combined with dozens of brushfires burning in and around the city have produced a blanket of smoky haze, triggering city authorities to declare an environmental emergency earlier in the week. On May 16, the Environment Department announced that firefighters are combating an average of 100 fires a day in brush, scrub, agricultural, and forest land through the country. For the full story, see https://www.apnews.com/8225b6b4f2354c1c9e7c7dfd67196e92.