By Environmental Desk
September 2026


Introduction and Main Facts

Indonesia is once again grappling with an ecological and public health emergency as severe forest and land fires (kebakaran hutan dan lahan, or karhutla) tear through massive swathes of carbon-rich peatlands. Driven by a combination of severe dry weather and aggressive land clearing for commercial agriculture and government projects, the fires have triggered an alarming spike in respiratory illnesses. Millions of citizens across Kalimantan and Papua find themselves choking on toxic, particle-laden smoke.

The crisis has rapidly transcended domestic borders, degrading air quality in neighboring Southeast Asian nations and igniting diplomatic tensions, corporate accountability debates, and fierce criticism of local and national disaster responses.

Key metrics defining the current crisis include:

  • Explosive Health Impacts: In Central Kalimantan alone, the local Health Office has documented 72,431 cases of Acute Respiratory Infection (ARI/ISPA) tied directly to the smoke haze. Across seven hard-hit provinces, national health data compiled between June and August reveals more than 50,891 additional cases.
  • Vast Environmental Destruction: Data from the Nusantara Auriga Foundation indicates that between January and June 2026, roughly 190,546 hectares of land burned nationwide—an area equivalent to 2.6 times the size of Singapore.
  • Cross-Border Reach: Greenpeace tracking between August 4 and September 6 confirms that toxic plumes have drifted across international boundaries, affecting Malaysia, Singapore, Brunei Darussalam, and the Philippines. In Sarawak, Malaysia, the Air Pollutant Index (API) skyrocketed past 500 in early September.
  • Corporate Scrutiny: The Ministry of Environment and Forestry (KLH) has initiated formal investigations into 19 corporate entities spanning seven provinces, whose combined burned concession areas total 11,046.69 hectares.

Chronology of the Crisis

The unfolding disaster did not materialize overnight; it follows a predictable yet worsening trajectory fueled by climatic vulnerabilities and administrative missteps.

  • January – June 2026: Early indications of widespread land conversion and dry conditions emerge. The Auriga Nusantara Foundation records 190,546 hectares burned nationwide, with Kalimantan heavily affected. Concurrently, thousands of thermal hotspots flare up within industrial forestry and palm oil concessions.
  • June – August 2026: Peak dry-season conditions set in. The Ministry of Health registers over 50,891 cases of acute respiratory infections across seven provinces. In Papua, land clearing for National Strategic Projects (PSN) transforms the region into an emerging epicenter for fires, with hotspot numbers multiplying exponentially month-over-month.
  • August 4 – September 6, 2026: Greenpeace monitors confirm that transboundary smoke haze has successfully breached international waters and airspaces, blanketing parts of Malaysia, Singapore, Brunei, and the Philippines. Sarawak, Malaysia, bears the brunt, enduring heavy smog for over a month.
  • August 31, 2026: Recognizing the escalating danger, the Central Kalimantan provincial government officially declares a Tanggap Darurat Karhutla (Emergency Response Status for Land and Forest Fires), deploying over 2,150 joint personnel to control the blazes.
  • September 4, 2026: Civil society organizations and environmental activists, including Greenpeace Malaysia and the Malaysian People’s Advocacy Association, stage a high-profile protest outside the Indonesian Embassy in Kuala Lumpur. They demand transparency regarding concession ownership and corporate culpability for the transboundary smoke.
  • September 5, 2026: Air pollution indices in Sarawak soar past the hazardous threshold of 500, forcing emergency school closures and prompting citizens to shutter outdoor activities.
  • September 9, 2026: WALHI (Indonesian Forum for the Environment) holds a press conference criticizing the government’s operational response, noting that conditions have deteriorated even after the emergency status declaration.

Supporting Data and Regional Breakdown

The severity of the 2026 karhutla crisis is underscored by comprehensive spatial mapping, health statistics, and demographic tracking provided by environmental watchdogs and government agencies.

The Human Toll: Rising Respiratory Infections

The sheer volume of smoke has overwhelmed regional medical infrastructure. Central Kalimantan stands as the hardest-hit province, where the total of 72,431 ISPA cases is distributed unevenly across heavily impacted districts:

  • Palangkaraya City: 16,166 cases
  • Kotawaringin Barat: 12,467 cases
  • Kotawaringin Timur: 7,982 cases
  • Kapuas: 7,910 cases
  • Sukamara: 557 cases

According to Janang Firman Palanungkai, Director of WALHI Central Kalimantan, these five regions share a critical vulnerability: massive, highly combustible peatland topography that, once ignited, burns deep underground and resists standard firefighting efforts.

Terjadi Lonjakan Sakit Pernapasan Dampak Asap Kebakaran Hutan

Across the wider island of Kalimantan, Greenpeace estimates that millions of lives have been disrupted by the toxic air: approximately 5.7 million people are exposed in West Kalimantan, 2.8 million in Central Kalimantan, 4.3 million in South Kalimantan, and 4.2 million in East Kalimantan.

The Extinction of Peat and the Papua Epicenters

Data compiled between January and June highlights the disproportionate burning of Kalimantan’s ecosystems:

  • West Kalimantan: 29,292.42 hectares
  • Central Kalimantan: 5,916.44 hectares
  • East Kalimantan: 4,866.64 hectares
  • South Kalimantan: 2,402.37 hectares
  • North Kalimantan: 730.14 hectares

Compounding the crisis is the rapid emergence of Papua as a new frontier for fire devastation. Greenpeace recorded 2,982 fire sources across eight Papuan provinces between August 8 and September 6. Of these, 345 originated within timber utilization permits (PBPH), and 551 were located inside oil palm concessions.

Crucially, Papua’s southern region has become a hotbed for fires linked to government-backed food and energy National Strategic Projects (PSN). Pantau Gambut analyzed spatial data within the framework of Ministry of Forestry Decree (SK) 591/2025, which regulates forest release for agricultural expansion in South Papua. Between January and August, a staggering 9,536 hotspots were detected within this specific decree zone.

The escalation was dramatic: hotspots within the SK 591 area surged from 627 in June to 2,960 in July, nearly doubling to 5,893 in August. Kabupaten Merauke alone accounted for 99% (9,467) of these thermal detections. Putra Saptian, a campaigner with Pantau Gambut, explains that Papua’s southern landscape relies heavily on interconnected wetlands and peat-driven water retention. Converting these wet ecosystems into dry agricultural estates requires extensive canalization and drainage. Once the water is drained, organic material dries out, transforming a natural carbon sink into an explosive tinderbox.


Official Responses and Criticisms

The central and regional governments have mobilized personnel, declared emergency states, and launched corporate investigations. However, these efforts face severe criticism from civil society organizations for being reactive, inadequate, and structurally flawed.

Inadequate Local Interventions

WALHI has blasted the disaster response in Central Kalimantan as deeply ineffective. Janang Firman noted that despite distributing masks and oxygen kits to 29 villages and establishing two "smoke-safe homes" (rumah aman asap), grassroots resources pale in comparison to the sheer scale of human need.

Furthermore, the provincial government’s decision to deploy thousands of civil servants (ASN) directly to firelines has raised red flags. Activists argue that bureaucrats and administrative workers are neither properly trained nor adequately equipped with personal protective equipment (PPE) to safely combat raging peat fires.

Terjadi Lonjakan Sakit Pernapasan Dampak Asap Kebakaran Hutan

The Corporate Crackdown and Structural Loopholes

The Ministry of Environment and Forestry (KLH) reported that it is actively investigating 19 companies across seven provinces whose combined burned concessions exceed 11,046 hectares. Yet, legal experts remain deeply skeptical about the efficacy of current punitive measures.

Edy Kurniawan, Deputy Head of Advocacy for the Indonesian Legal Aid Foundation (YLBHI), argues that criminal law enforcement regarding karhutla routinely bypasses high-level corporate decision-makers in favor of finding convenient scapegoats.

"Law enforcement on forest and land fires often just looks for scapegoats," Kurniawan stated. "In individual cases, for instance, the government targets smallholder farmers or Indigenous people, but major corporate actors are never touched."

Kurniawan added that since the passage of the controversial Job Creation Law (Undang-Undang Cipta Kerja), regulatory frameworks have leaned heavily toward administrative sanctions for corporations, neutralizing criminal deterrents against reckless land management.


Implications: Public Health, Transnational Diplomacy, and Legal Avenues

1. Public Health Warnings: Children and Vulnerable Groups

The medical implications of prolonged smoke exposure are severe, particularly for demographic subsets with lower physiological resilience. Fachrial Kautsar, Head of Advocacy and Campaigns at the Center for Indonesia’s Strategic Development Initiative (CISDI), warns that particulate matter ($PM_2.5$) generated by peat fires is ten times more dangerous to children’s developing lungs than standard urban air pollution.

"Vulnerable groups such as pregnant women, the elderly, and children are at extreme risk of developing asthma and chronic lung diseases," Kautsar noted. "Fetal development can also be severely disrupted by systemic inflammation caused by toxic inhalation."

2. Transnational Diplomatic Strain

The health and economic fallout has crossed territorial borders, plunging Indonesia into diplomatic friction with its neighbors. According to Belgis Habiba, Forest Campaigner at Greenpeace Indonesia, smoke plumes affected Malaysia for over a month (specifically Sarawak for 34 days, Sabah for 8, Kuala Lumpur for 4, and Johor for 3), alongside three days in Singapore, three in Brunei, and up to two days in the Philippines.

In Malaysia, public anger boiled over. Nur Sakeenah Omar of Greenpeace Malaysia emphasized that transboundary haze is not merely an environmental nuisance, but a grave human rights violation. When air quality indices in Sarawak breached 500 on September 5, schools were shuttered, outdoor commerce halted, and citizens forced indoors.

Terjadi Lonjakan Sakit Pernapasan Dampak Asap Kebakaran Hutan

While the Malaysian government implemented cloud-seeding operations, enhanced air monitoring, and offered bilateral firefighting assistance to Jakarta, activists insist these measures only address symptoms rather than the root cause. On September 4, Malaysian civil society groups marched on the Indonesian Embassy in Kuala Lumpur, demanding that Jakarta disclose the exact locations, investigation results, and corporate concession ownership tied to cross-border smoke sources.

Heng Kiah Chun of Greenpeace Malaysia reinforced this stance, asserting that if parent companies registered in Malaysia are found complicit in Indonesian peatland clearance, civil society will push Kuala Lumpur to hold them legally accountable at home.

3. Legal Innovation: Suing Corporations Across Borders

Amidst systemic regulatory failures, legal scholars are pointing toward aggressive civil litigation as a viable remedy for victims. Professor Andri Gunawan Wibisana, an expert in Environmental Law at the University of Indonesia, argues that personal and localized damages caused by smoke cannot easily be recovered through government class actions alone; affected citizens must initiate private lawsuits.

"I encourage more and more citizen lawsuits against corporations; that is the only way for citizens to demand compensation," Wibisana urged.

Crucially, Wibisana highlights a groundbreaking legal instrument: Supreme Court Regulation (Perma) Number 1 of 2023. Under Article 46 of this regulation, courts in Indonesia now permit liability frameworks based on localized contribution models. This means victims no longer face the historically insurmountable burden of proving that a single corporate defendant caused all of their respiratory injuries when smoke mixes from multiple concession sources.

Furthermore, Wibisana contends that Perma 1/2023 opens the door for foreign nationals—such as aggrieved citizens from Malaysia or Singapore—to sue Indonesian government bodies and corporations directly within Indonesian courts for damages linked to transboundary haze.


Conclusion

The 2026 forest and land fire crisis serves as a stark reminder of Indonesia’s unresolved structural vulnerabilities in land-use governance, peatland protection, and climate resilience. As tens of thousands suffer from acute respiratory infections, ecosystems burn away in Papua and Kalimantan, and diplomatic relations strain with Southeast Asian neighbors, the message from scientists, legal experts, and civil society is unequivocal.

Without genuine corporate transparency, a strict overhaul of industrial concessions on carbon-dense peat, and robust utilization of innovative legal instruments like Perma 1/2023 to hold conglomerates financially liable, the annual tragedy of the regional choking haze will remain an inescapable fixture of the regional calendar.

By Nana Wu

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