1997 Indonesian forest fires

The 1997 Indonesian forest fires were caused by changing land use which made the tropical forest vulnerable to fire during a drought associated with that year's El Niño. Indonesian forests have historically been resistant to burning even during long dry seasons and despite the use of fire to clear land for swidden agriculture. The land use changes that led to the fires were a combination of industrial-scale logging, draining peatlands for conversion to oil palm and fast-growing tree plantations, and a massive government program to drain swamps and convert them to rice paddies. A total of 240 people perished in the wildfires. Due to the heavy smoke caused by the fires, an Airbus A300 operating as Garuda Indonesia Flight 152 crashed on approach to Medan's Polonia Airport. All 234 people on board died, making it the worst crash in Indonesian history. == Estimated cost ==

The total economic value of the damages is conservatively estimated to be US$4.47 billion, of which by far the largest share was borne by Indonesia. This figure excludes a number of damages that are especially difficult to measure or to value in monetary terms, such as loss of human life, long-term health impacts, and some biodiversity losses. Forest fires in Indonesia in 1997 were estimated to have released between 0.81 and 2.57 gigatonnes of carbon into the atmosphere, which is between 13 and 40% of the annual carbon dioxide emissions from burning fossil fuels. As part of steps taken to avoid the recurring of the Haze, the Association of Southeast Asian Nations (ASEAN) approved the need for an early warning system in the Regional Haze Action Plan (RHAP) in 1998 to prevent forest fires and the resulting haze through improved management policies and enforcements, example via Fire Danger Rating System (FDRS). ==Countries affected==