MANILA, Philippines — Kanlaon Volcano on Negros Island recorded a slight increase in sulfur dioxide emissions on Thursday, according to the Philippine Institute of Volcanology and Seismology (Phivolcs). In its latest 24-hour monitoring report, Phivolcs said Kanlaon emitted 1,422 tons of sulfur dioxide, up from 1,339 tons the previous day. The volcano also registered eight