Indonesia Deploys Dry Ice Over South Sumatra to Combat Haze

The recent footage released by CNA shows Indonesian authorities releasing a substantial quantity of dry ice over the province of South Sumatra in an effort to disperse persistent haze caused by ongoing land and forest fires. The operation, which took place over two days, was centred on the area surrounding Palembang's international airport, where the smog has notably disrupted flight schedules. This report examines the implications of the deployment, situates it within regional environmental policy, and considers the potential relevance for Japan's own air quality and disaster‑response frameworks.

Background to the South Sumatra Haze Crisis

South Sumatra has been experiencing thick haze for several weeks, a condition that typically arises from the combustion of peatlands and forested areas. The smoke has reduced visibility, affected public health, and interfered with transportation networks, particularly aviation. While the specific causes of the current fires were not detailed in the video, the pattern aligns with seasonal slash‑and‑burn practices that have historically contributed to trans‑boundary haze in Southeast Asia.

Indonesia’s Ministry of Environment and Forestry has previously coordinated with neighbouring countries, including Malaysia and Singapore, under the ASEAN Agreement on Trans‑Boundary Haze Pollution. The present deployment of dry ice represents an escalation in tactical response, indicating that conventional firefighting measures have proved insufficient to clear the smoke in the affected zones.

For Japan, the haze situation holds relevance beyond regional solidarity. Seasonal haze episodes have, in past years, prompted advisories from the Ministry of Health, Labour and Welfare concerning air quality for Japanese nationals travelling or residing in the region. Moreover, Japanese airlines operating routes to Indonesian hubs monitor such conditions closely, as disruptions can affect flight safety and scheduling.

Analysts note that the intensity of the haze this year may be linked to broader climatic trends, including higher temperatures and drier conditions that exacerbate fire spread. While the video does not provide meteorological data, the visual thickness of the smog suggests a significant concentration of particulate matter, which could have short‑term health impacts for residents and travelers alike.

Details of the Dry Ice Deployment

The footage indicates that approximately 2.4 tonnes of dry ice were released from aircraft over the targeted area. Dry ice, solid carbon dioxide, sublimates rapidly, producing a cold cloud that can aid in lowering ambient temperature and encouraging the condensation of smoke particles, thereby facilitating their descent. This method has been employed in other contexts, such as wildfire smoke mitigation in the United States, though its effectiveness can vary depending on atmospheric conditions.

According to the video description, the operation spanned two days and concentrated initially around Palembang’s international airport. The choice of this location reflects the strategic importance of maintaining air traffic flow; disruptions at the airport have broader economic implications, affecting cargo and passenger movements that connect to Japan’s logistics networks.

The deployment was carried out by Indonesian authorities, though the specific agency responsible was not identified in the footage. It is plausible that the operation involved coordination between the Ministry of Environment and Forestry and the National Disaster Management Agency, given the scale of the material used and the need for aerial delivery.

While the video does not disclose the exact delivery platform, the visual evidence suggests the use of fixed‑wing aircraft capable of carrying several tonnes of payload. The operation’s timing, coinciding with peak flight schedules, underscores the urgency placed on restoring clear airspace for commercial aviation.

Implications for Regional Air Quality Management

The use of dry ice represents a tactical addition to the toolbox of haze mitigation strategies. Traditionally, Indonesia has relied on ground firefighting crews, water bombing, and the establishment of firebreaks. The aerial dispersal of dry ice may complement these measures by targeting the atmospheric component of the problem, rather than the fire source itself.

From a policy perspective, the deployment could signal a shift toward more technologically driven responses. This aligns with broader trends in the ASEAN region, where member states are exploring advanced monitoring systems, satellite imagery, and predictive modelling to anticipate fire outbreaks. Japan’s own Ministry of the Environment has invested in regional satellite collaborations, and the development of novel mitigation techniques in Indonesia may offer opportunities for joint research and technology sharing.

However, the effectiveness of dry ice in reducing haze remains subject to scientific scrutiny. The process relies on sufficient cooling to cause smoke particles to coalesce and settle, which may be limited by wind patterns and temperature gradients. The video does not provide post‑deployment measurements, leaving the actual impact on visibility and air quality unquantified.

For Japanese businesses operating in Indonesia, especially those in the manufacturing and logistics sectors, the episode underscores the importance of contingency planning for environmental disruptions. Companies may need to factor in the risk of haze‑related delays when scheduling shipments to and from ports such as Palembang, which serve as gateways for raw materials used in Japanese production lines.

Japan’s Strategic Interest in Indonesian Fire Management

Indonesia is a key partner for Japan in several strategic domains, including energy, infrastructure, and maritime security. The persistence of forest and peat fires poses a recurring challenge to bilateral cooperation, particularly in the realm of environmental governance. Japan’s Ministry of Economy, Trade and Industry (METI) has supported Indonesian projects aimed at sustainable land use, and the current haze episode may influence the prioritisation of such initiatives.

Furthermore, the Japanese government has historically contributed to capacity‑building programmes for fire prevention, offering training, equipment, and technical assistance. The deployment of dry ice could be viewed as an operational complement to these longer‑term efforts, providing a short‑term remedy while structural solutions are developed.

In the context of the Japan‑Indonesia Economic Partnership Agreement, disruptions caused by haze can affect trade flows, particularly for agricultural commodities that are sensitive to quality degradation under poor air conditions. Japanese importers of commodities such as palm oil and rubber may therefore monitor the situation closely, adjusting procurement strategies as needed.

From a diplomatic standpoint, Japan’s Ministry of Foreign Affairs (MOFA) regularly engages with Indonesia on environmental issues, emphasizing the shared responsibility to protect the region’s air quality. The visibility of the dry ice operation, amplified by international media coverage, may provide a platform for Japan to reaffirm its commitment to collaborative fire‑management initiatives.

Technical Assessment of Dry Ice as a Mitigation Tool

Dry ice, being solid carbon dioxide, sublimates at –78.5°C, creating a cold plume that can theoretically lower surrounding air temperature. In the context of haze, the cooling effect can cause water vapour and aerosol particles to condense, forming larger droplets that fall more readily to the ground. This physical principle underpins the rationale for the Indonesian operation.

Nevertheless, the scale of the deployment—2.4 tonnes—must be evaluated against the volume of the haze plume. The video does not disclose the altitude of release or the coverage area, making it difficult to gauge the proportion of the haze that could be affected. Experts in atmospheric science often caution that such interventions may have limited reach unless applied over a broad area and under favourable meteorological conditions.

In Japan, research institutions such as the National Institute for Environmental Studies have examined similar cloud‑seeding and aerosol‑modification techniques. Findings suggest that while targeted cooling can produce localized improvements in visibility, the overall impact on regional air quality is modest without concurrent fire suppression.

Consequently, the dry ice operation should be seen as a complementary measure rather than a standalone solution. Its deployment indicates a willingness by Indonesian authorities to experiment with innovative methods, but the long‑term efficacy will depend on systematic evaluation and integration with broader fire‑prevention strategies.

Future Outlook and Recommendations for Japan

Looking ahead, the recurrence of haze events in Indonesia will likely continue to test regional cooperation mechanisms. Japan can play a constructive role by supporting the development of robust monitoring networks, sharing best practices in fire‑suppression technology, and contributing to research on atmospheric mitigation techniques such as dry ice deployment.

Policy recommendations include enhancing data sharing between Japan’s Meteorological Agency and Indonesia’s disaster management agencies, facilitating joint training exercises for aerial response, and exploring funding avenues for the procurement of specialized aircraft equipped for aerosol‑control missions.

In the commercial sphere, Japanese firms with supply‑chain exposure to South Sumatra should incorporate haze risk assessments into their operational planning, potentially diversifying logistics routes to mitigate the impact of future disruptions. Moreover, corporate sustainability programmes could align with Indonesian reforestation and peat‑land restoration projects, addressing the root causes of fire‑related haze.

Finally, public communication strategies are essential. Both Japanese and Indonesian authorities should provide clear, timely information to affected populations and travelers, ensuring that health advisories and travel updates are disseminated effectively. The visibility of the dry ice operation, as captured in the CNA footage, offers an opportunity to raise awareness about the challenges of haze and the collaborative steps being taken to address them.

By Kenji Tanaka, Staff Writer

This article was produced with AI-assisted research and editorial support. Reporting is based on the source material cited below. Sources: CNA video report (18 October 2026); CNA; Global1.News