Indonesia and Malaysia have agreed to share the skies amid a haze crisis that has closed nearly 600 Malaysian schools and erased much of the Kuala Lumpur skyline from view.The Petronas Twin Towers, usually visible for miles around, have been swallowed by a grey shroud as wildfires that continue to rage across Indonesia’s Sumatra and Kalimantan on the island of Borneo.Authorities from both countries are coordinating operations along their shared Bornean border, with Malaysia’s environment...