A Hotter Planet, Bigger Fires

Wildfires are projected to grow larger and more intense in the coming decades as climate change reshapes fire patterns across the planet, according to new research published in Nature Communications, February 12, 2026. The study warns that rising global temperatures are not only extending fire seasons but also increasing the likelihood of extreme, high-impact blazes in multiple regions worldwide.

The research, titled “Wildfires on a changing planet,” was led by Olivia Haas alongside Iain Colin Prentice and Sandy P. Harrison from the Leverhulme Centre for Wildfires, Environment and Society. Using a global empirical model, the team projected how wildfire activity could evolve by the end of the 21st century under two warming scenarios, a relatively constrained 1.5 degrees Celsius pathway and a high-emissions trajectory of 3 to 4 degrees Celsius.

Rising Fire Intensity in a Warming World

According to Haas, climate change is creating environmental conditions that favor larger and more severe fires. Higher temperatures, prolonged droughts and shifting rainfall patterns are drying out vegetation, effectively turning landscapes into more flammable fuel.

“Even under the most ambitious mitigation scenarios, we expect significant shifts in wildfire behavior,” Haas said. She explained that the change is not simply about how often fires occur, but about how they burn. Future wildfires are projected to be harder to control and more capable of causing deep ecological damage.

The model examined three key dimensions of fire activity, total area burned, fire size and fire intensity. While global totals may not increase uniformly everywhere, the structure and impact of fires are expected to shift dramatically. Under the high-warming scenario of 3 to 4 degrees Celsius, the study projects substantial increases in burned area across many vegetation types, accompanied by a rise in large, intense fire events.

Prentice emphasized that climate change is altering the historical relationship between weather and fire. “We are moving into a different fire regime,” he said. “Past assumptions about how fires respond to climate conditions may no longer apply in the same way.”

Regions Facing Greater Risk

The study identifies several regions likely to experience more frequent large and intense wildfires, particularly in extra-tropical areas of the Northern Hemisphere.

Western North America, parts of Canada, Russia and Northern Europe stand out as regions with heightened risk. In these areas, warming temperatures and changes in soil moisture are projected to create highly favorable conditions for extreme fire events. Larger and more intense fires could become increasingly common as the century progresses.

In contrast, some tropical regions may see an overall decline in total area burned. This decrease is largely linked to human land-use changes, including agricultural expansion and landscape management practices that reduce the spread of fire. However, researchers caution that a reduction in total burned area does not eliminate danger. Under extreme weather conditions, intense fires can still occur and produce devastating consequences for ecosystems and communities.

Harrison noted that high-intensity fires can fundamentally alter forest structure and disrupt carbon cycles. “Large fires don’t just burn vegetation at the surface,” she said. “They can transform ecosystems, delay recovery and release significant amounts of carbon into the atmosphere.” Such emissions could further amplify global warming, creating feedback loops that intensify future fire risk.

One of the study’s more striking findings is a paradox under strong mitigation scenarios. In a world that successfully limits warming to around 1.5 degrees Celsius, total global burned area could decline. Yet the likelihood of very large and severe fires may still increase in certain regions. In other words, there may be fewer small fires overall, but a greater risk of catastrophic megafires.

Adaptation Becomes Essential

The researchers stress that cutting greenhouse gas emissions remains critical, but mitigation alone will not be enough. Societies must also adapt to a future where wildfire dynamics are fundamentally changing.

Forest management strategies will need to evolve to reflect new fire realities. Policies that promote reforestation and forest expansion as climate solutions must incorporate wildfire risk into planning. Without integrated fire management, larger forested areas in a warmer climate could provide more fuel for extreme blazes.

Urban planning and land-use policies will also play a crucial role, particularly in regions where residential areas border forests and wildlands. Strengthening early warning systems, investing in fire-resilient infrastructure and educating communities about fire preparedness are among the measures that can reduce vulnerability.

“We are not just facing longer fire seasons,” Haas said. “We are facing systemic changes in how fires occur.”

The study underscores that a warmer planet is likely to experience different and more disruptive fire regimes. As temperatures continue to rise, large and intense wildfires could become a defining feature of 21st-century landscapes. How effectively governments and communities adapt to this emerging reality may determine the scale of future losses — both ecological and human. (Wage Erlangga)