HIBBING — In a meeting that lasted less than 15 minutes, the Hibbing School Board voted 5-1 to approve the closure of the Greenhaven Elementary School, taking the district from four school buildings down to three. The decision to close the elementary school comes amid a $2 million budget shortfall for the Hibbing school district, which could leave the district facing statutory operating debt if budget adjustments aren’t made. “This is not a deci…