BACOLOD CITY – Negros Occidental Gov. Eugenio Jose Lacson has asked the Department of Environment and Natural Resources (DENR) for a special permit to allow commercial clearing of lahar residue that has been clogging Ibid Creek in Sitio Tamburong, Barangay Biak-na-Bato, La Castellana town. The governor said they could not depend on the equipment of