The clamor of second graders breaking away from lessons to form lunch lines has gotten quieter in a rural New Mexico community, where families losing coal jobs have been forced to pack up and leave in search of work. At Judy Nelson Elementary, 1 in 4 students have left in an exodus spurred by decisions made five years ago to shutter a coal-fired power plant and mine that sit just up the road from the school in a largely Navajo community. The plant and mine had provided electricity to millions of people across the southwestern U.S. for nearly a half-century....
