Charlotte Observer: At the small liberal arts college where I teach, its hard for students to miss class with any degree of anonymity. But last semester, one of my students, Kelsey Juliana, gave the most compelling excuse for missing class that Ive heard in 16 years of teaching. She was flying to Oregon to sue the federal government for failure to protect youth from climate changes impacts. As a teacher, writer, and mother, I call that an excused absence. On April 8, 2016, the federal District Court in Eugene,...