In the past decades, large areas of forest in Sumatra, Indonesia have been replaced by cash crops like oil palm and rubber plantations.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/deforestation-linked-palm-oil-production-making-indonesia-warmer
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/phys
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/forests
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/deforestation
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/indonesia
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/palm-oil
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agriculture
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/forest-fires
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/global-warming