LUCENA CITY, Quezon – Taal Volcano in Batangas doubled its sulfur dioxide emission on Wednesday, the Philippine Institute of Volcanology and Seismology (Phivolcs) reported on Thursday. In its latest 24-hour monitoring, Phivolcs said the volcano emitted 6,287 tons of sulfur dioxide on Wednesday, nearly double the average daily emission of 3,234 tons recorded from May
