Jakarta, Sept. 11 -- Indonesia is facing multiple natural and environmental hazards at the same time, ranging from volcanic eruptions and ash clouds disrupting air travel to widespread forest fires, highlighting growing pressure on the nation's transport system and disaster response efforts. Anak Krakatau volcano in the Sunda Strait has erupted in recent days, forcing several airports on Java and Sumatra islands to temporarily close. The disruption affected nearly 3,000 flights and around 341,000 passengers. Volcanic ash has affected five Indonesian provinces, prompting authorities to closely monitor air quality and adjust aviation operations. Jakarta and several localities have switched to online classes for students and advised residents ...