An environmentalist measures ground acidity at the Rawa Singkil Wildlife Reserve, one of the peat swamps in Aceh, Indonesia, Sept. 27, 2016. (Xinhua/Junaidi)
An environmentalist measures ground acidity at the Rawa Singkil Wildlife Reserve, one of the peat swamps in Aceh, Indonesia, Sept. 27, 2016. (Xinhua/Junaidi)