Two years after the catastrophic 2024 landslide in Papua New Guinea’s (PNG) Enga Province, the Highlands remain one of the most vulnerable regions in the world to weather‑driven disasters. As the 2026 rainy season brings another round of intense downpours, humanitarian agencies warn that the conditions that triggered the deadly 2024 collapse have not improved, and in some areas, have in fact worsened.

Increasingly volatile rainfall patterns, driven by warmer weather, continue to destabilise already fragile mountain slopes. NASA’s Earth Observatory has documented how extreme rainfall events linked to cyclones and shifting weather systems are becoming more frequent across PNG’s mountainous interior, raising the likelihood of future landslides

Vulnerability to Landslides

The 2024 PNG landslide revealed the structural fragility of many Highland communities. Villages are often built on steep, erosion‑prone slopes where even moderate rainfall can trigger soil movement. When days of heavy rain saturated the ground in May 2024, entire sections of the mountainside collapsed, burying homes under metres of mud and rock. Local authorities struggled to determine how many people were missing because the terrain remained unstable for days. Rescue teams were forced to navigate treacherous slopes, and in many cases, villagers used shovels and their bare hands to search for survivors.

One survivor, Rocky Peter, told ABC News: “A rock has rolled down from the mountain up there, and there was a big bang … For those of us who heard the sound, we were able to escape. But the ones who didn’t hear were buried in their sleep.”

The 2024 disaster exposed the logistical challenges of delivering aid in the Highlands. Many communities are accessible only by narrow mountain roads that wind through unstable terrain. When these roads collapse, entire districts become unreachable for days or even weeks. Helicopter access is limited, and unpredictable weather often grounds flights. Even when national authorities mobilise quickly, the physical geography of the Highlands slows every stage of the response. These conditions were widely reported during the 2024 event, which affected more than 4,000 people and destroyed critical infrastructure.

Entire Communities Become Invisible

The humanitarian consequences of PNG’s landslides extend far beyond the initial collapse. In 2024, blocked roads left families unable to reach clinics, markets or relief centres. Many communities in Enga and Hela rely on a single unpaved road for food and medical supplies, that once blocked, escalate shortages rapidly. UNDP assessments from earlier landslides highlight the same challenges, namely unstable terrain, dangerous rescue conditions and the near‑impossibility of deploying heavy machinery to remote sites.

Children also faced particular risks as families fled damaged homes and sought temporary shelter. UNICEF reports show that PNG’s landslides often disrupt schooling and expose children to heightened protection risks.

Schools frequently double as evacuation centres, suspending education for weeks at a time. The 2024 humanitarian situation report for Enga documented how displacement compounded existing vulnerabilities in communities already facing poverty, limited health care access and chronic underinvestment in basic services.

The long‑term consequences were equally severe. IFRC documentation of the 2024 Enga landslide describes prolonged displacement, blocked waterways and repeated slope failures,  conditions that increase the likelihood that communities will face recurring crises without sustained international support. Two years later, many of these structural vulnerabilities remain unchanged.

Revealing the Cost of Weather Extremes

Two years on, the 2024 PNG landslide stands as a stark reminder of how weather extremes magnify existing inequalities. Remote highland communities, already facing limited state presence, poor road networks and under‑resourced clinics, remain on the front line of increasingly volatile weather patterns. When disasters strike, these communities could lack the buffers that wealthier or more connected regions rely on, such as emergency shelters, stocked health posts, reliable communications and rapid‑response teams. The invisibility of these crises on the global stage compounds the problem. While major cyclones in Fiji or Vanuatu often receive international coverage, slow‑onset or geographically isolated disasters in PNG rarely break through. This lack of visibility contributes to chronic underfunding for disaster‑risk reduction and climate adaptation, despite PNG being one of the most hazard‑exposed nations in the world.

Strengthening Disaster Relief in PNG’s Highlands

As the rainy season approaches, preventing another tragedy like the 2024 PNG landslide depends on ongoing investment in climate‑resilient infrastructure, early‑warning systems and community‑level preparedness. The UNDP continues to support Highlands provinces with all‑weather roads, reinforced bridges and slope‑stabilisation projects to keep communities connected during extreme rainfall events.

Humanitarian agencies such as UNICEF are also expanding pre‑positioned supplies and stocked health posts, proven measures that reduce casualties and displacement during natural disaster emergencies. Sustained international support remains vital to help PNG strengthen its disaster‑response capacity and protect vulnerable highland communities

The 2024 PNG landslide revealed how weather extremes deepen existing vulnerabilities, yet the country’s ongoing relief efforts do show resilience in motion. From UNDP’s infrastructure projects to SPC’s hazard‑mapping initiatives and UNICEF’s community‑based response networks, these programs demonstrate that PNG is building disaster preparedness piece by piece. As global attention often drifts elsewhere, these sustained efforts stand as proof that even in the world’s most remote highlands, coordinated humanitarian action can turn isolation into strength.

– Max Kenway

Max is based in London, UK and focuses on Technology and Politics for The Borgen Project.

Photo: Flickr