St. Patrick’s Day is over, but you can still run for it. The fourth annual Couve Clover Run is set to launch at 9 a.m. Sunday in downtown Vancouver, and the sponsoring organization, WHY Racing Events, is offering a deep discount on registration for kids. That’s because the percentage of children and adolescents affected by obesity has more than tripled since the 1970s, according to the Centers for Disease Control and Prevention.