Kelsey Cascadia Rose Juliana was fifteen years old in 2012. That year she joined with a nonprofit group called Our Children’s Trust to sue the governor of Oregon with hopes of forcing the state to reduce its carbon emissions. Long before the suit, Juliana had already considered herself an environmentalist. Fellow students at her Eugene, Oregon, middle school called her “eco girl” and she was known for her vigilance in turning off lights and other gestures of environmental awareness. Her parents, environmentalists too, met in the 1990s during the fight to preserve old-growth forests in the state. At that time activists famously chained themselves to logging trucks or occupied roosts in the upper canopy to preserve old-growth trees.