The region promised to end the haze by 2020, and the smoke is back

Southeast Asia set itself a deadline and missed it. ASEAN said it would eliminate transboundary haze by 2020, meaning smoke that crosses national borders. Six years past that date, forests and peatlands in Kalimantan are burning again and the smoke is sitting over Sarawak and beyond. The South China Morning Post put four reporters across the region onto a problem the region had already promised to solve.

The view from a clinic is where that promise stops being paperwork. Dr Asma Zafirah, who works in Sarawak, describes patients arriving with watery eyes and laboured breathing. "That is already a signal that their body is not simply being irritated," the doctor said. "It is having a clinically significant response to the exposure." The harm comes mainly from PM2.5, particles fine enough to pass out of the lungs and into the blood. Short exposure means inflammation and asthma attacks, and long exposure is linked to heart disease and cancer.

A deadline is worth holding on to because it can be checked. ASEAN gave itself a date, the date went by, and the burning still arrives with the dry season. That turns each smoke season from bad luck into a record of what these governments did and did not build in the years they had.

Why it matters

This is not a weather event you sit out once. The haze has come back often enough, and been promised away often enough, that the honest planning horizon is years rather than this season. For families in the fire provinces and across the border in Sarawak, that means treating clean indoor air and good masks as normal household equipment, not an emergency purchase. For Jakarta, a missed regional target is harder to answer than one bad season, because the clock has been running since 2020.