Sungai Sembilang Nature Conservation Park in South Sumatra. Greenpeace, together with representatives from the National Parliament and the Indonesian National Police, bear witness to the huge destruction of Indonesias natural peatland forest in Sumatra. Deforestation is a key source of Indonesias greenhouse gas emissions, making the country the third largest contributor to global emissions. Greenpeace is demanding the Indonesian government to fully review the existing logging concessions and to institute full protection of peatland and natural forests.