Super‑charged El Niño fuels toxic haze, blanketing Southeast Asia and threatening child health

A massive plume of smoke from raging wildfires is enveloping large parts of Southeast Asia, officials say the haze has reached toxic levels as a powerful El Niño pattern intensifies weather conditions across the region.

Satellite data and air‑quality monitors indicate that millions of residents are breathing polluted air, with concentrations of fine particulate matter far exceeding World Health Organization guidelines. Health ministries in several affected countries have reported a sharp rise in respiratory complaints, and more than 12,000 children have been treated for breathing difficulties since the haze began.

Experts link the surge in fire activity to the unusually warm and dry conditions driven by the current “super” El Niño event, which has pushed temperatures higher and rainfall lower than average. The combination creates an environment where forest and peatland fires ignite easily and burn for extended periods, releasing thick smoke that drifts across national borders.

Governments in the region have mobilised emergency response teams, issuing health advisories, distributing masks, and in some cases, temporarily closing schools to protect vulnerable populations. Yet the transboundary nature of the smoke complicates mitigation efforts, prompting calls for coordinated regional strategies and greater investment in fire‑prevention measures such as peatland restoration and stricter land‑use enforcement.

Public health officials warn that prolonged exposure could have lasting impacts, especially for children, the elderly and those with pre‑existing conditions. As the El Niño pattern is expected to persist through the coming months, authorities are urging communities to stay informed, limit outdoor activity when air quality deteriorates, and seek medical attention for any respiratory symptoms. The episode underscores the growing link between climate variability and air‑quality crises in the region, highlighting the need for both immediate action and longer‑term climate resilience planning.