Flagstaff mandates that shielding be placed on outdoor lighting so that it doesn’t project skyward. There are also limits on the lumens of light allowed per acre of land.The result is a starry sky visible even from the heart of the city. Flagstaff’s Buffalo...

Helen BriggsEnvironment correspondent"Going forward, the priority is to continue using these methods for long-term surveillance, so we can understand how multiple emerging stressors will shape whale health in the coming years," said Helena Costa of Nord University, Norway. The study, involving King's College London...