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Rising forest loss puts Kalimantan at higher disaster risk 

Around 90 percent of 13,000 hectares of natural forests cleared by activities from the pulpwood industry were found in Kalimantan, according to a new report issued by environmental groups, raising alarms of looming ecological crisis that may hit the island in the coming years.

Gembong Hanung (The Jakarta Post)
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Fri, December 12, 2025 Published on Dec. 11, 2025 Published on 2025-12-11T19:10:54+07:00

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Deforestation is seen May 18, 2024, in East Kalimantan. Deforestation caused by pulpwood plantation expansion is shifting from Sumatra to Kalimantan. Deforestation is seen May 18, 2024, in East Kalimantan. Deforestation caused by pulpwood plantation expansion is shifting from Sumatra to Kalimantan. (AFP/Handout/Ariga Nusantara)

D

eforestation driven by the expansion of pulpwood plantations is increasingly threatening Kalimantan, a new report has found, raising fears of repeating the devastating floods and landslides that recently hit northern Sumatra and claimed hundreds of lives.

The report, issued on Wednesday by global environmental nongovernment organization Trase, found that the pulp industry across Indonesia had cleared more than 13,000 hectares of natural forests throughout 2024. 

While the figure shows a decline in pulp industry deforestation after increasing for three consecutive years, the group revealed the hot spot for forest loss in Indonesia is now shifting from historically plagued Sumatra to Indonesia’s Kalimantan area on Borneo Island, where 90 percent of deforestation from the pulp industry was detected.

Forest loss in Sumatra has been in the spotlight recently following recent cyclone-induced floods and landslides that caused widespread destruction and casualties. At least 990 people were killed across Aceh, North Sumatra and West Sumatra, as of Thursday.

Environmentalists have blamed deforestation in the three provinces for causing the disasters, as the land’s ability to contain rainwater during extreme weather events has been reduced. 

“If the trend continues, it’s not impossible that in the next 10, 15 or 20 years, the ecological disasters that happened in northern Sumatra might also take place in Kalimantan,” said Hilman Afif, a campaigner of local NGO Auriga Nusantara that contributed to Trase’s report, during the report launching event in Jakarta on Wednesday.

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Indonesia is one of the world’s major pulp producers. The country produced 11.3 million tonnes of pulp in 2024, roughly two-fold increase from 2015. 

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