Indonesia's Underground Peat Fires Surge as El Niño Intensifies
Indonesia is facing an unusually early surge in peat fires during the 2026 fire season, according to climate researchers. The surge is being driven by a strengthening El Niño pattern combined with severe drought conditions that are rapidly drying out the nation's extensive wetland systems.
Peat fires burn underground in waterlogged soils and can smolder for months, making them particularly difficult to extinguish. Unlike typical surface forest fires, these underground blazes release significantly higher amounts of fine particulate matter and other pollutants into the atmosphere. The resulting smoke plumes not only pose serious health risks to nearby populations but also create detection challenges for satellites, as the thick haze can obscure the fires from space-based monitoring systems.
Scientists warn that the combination of prolonged drought and elevated temperatures associated with El Niño creates conditions particularly favorable for peat fire ignition and spread. Peatlands, which are carbon-rich soils formed over thousands of years, can release massive stores of stored carbon when they burn, potentially contributing to feedback loops that further accelerate climate change.
The early onset of the fire season has raised concerns among environmental and public health officials, who anticipate that smoke-related health issues may persist for several months if conditions continue to deteriorate.