The haze is an annual problem caused by fires set in forest and on carbon-rich peatland in Indonesia to quickly and cheaply clear land for palm oil and pulpwood plantations. Riau and South Sumatera province have the highest density of cluster distributions of the hotspot. Based on the maturity level of peat, cluster distributions of hotspot were mostly found in ‘hemic’ maturity level. Based on peatland thickness, cluster distribution of hotspot was mostly found in ‘very deep’ thickness.
© Afriadi Hikmal for Greenpeace