...In 2015 a dry spell caused by the El Niño weather pattern made Indonesia's forest fires especially severe. Smoke settled over Singapore for months and even reached Cambodia, Vietnam and the Philippines. At least 2m hectares of forest were burned. Dozens of people were killed and hundreds of thousands sickened. For much of October 2015 greenhouse gases released by those fires exceeded the emissions of the entire American economy. The losses over five months of fires amounted to around 2% of the country’s GDP...[The event has labeled the 2015 Southeast Asian haze]
Between 2001 and 2014, Indonesia lost 18.5m hectares of tree cover—an area more than twice the size of Ireland. In 2014 Indonesia overtook Brazil to become the world’s biggest deforester.
One of the reasons for those forest fires is economic. The country produces well over half the world’s palm oil, a commodity used in cooking and cosmetics, as a food additive and as a biofuel. It accounts for around 4.5% of Indonesia’s GDP, and demand is still rising. To meet it, Indonesian farmers set fires to clear forest and make way for new plantations. Often these forests grow on peatlands, which store carbon from decayed organic matter; in tropical regions these hold up to ten times as much carbon as surface soil. Draining peatlands releases all of that carbon. The peat also becomes a fuel, so it is not just felled trees that are burning but the ground itself.
But politics also plays a part. ... The president declared a moratorium on peatland-development licences and called for peat forests to be restored, even as his agriculture minister pointed out that burned peatland can be used for corn and soyabean planting....
Civil-society groups have had some success. At least 188 Indonesian palm-oil companies have made some sort of sustainability pledge, including five large multinational firms that in 2014 signed the Indonesian Palm Oil Pledge (IPOP), which commits them to avoiding deforestation and planting oil palms on peatland. Together those five firms account for 80% of Indonesia’s palm-oil exports.All the same, deforestation continues. Perversely, it may even have increased temporarily, as companies cleared as much land as they could before the agreement took effect. Besides, opaque supply chains allow companies to buy palm oil from suppliers not bound by IPOP.
Forests: A world on fire, Economist Special Report on Indonesia, Feb. 27, 2016