Extreme fire weather and CO2 emissions: What UK businesses need to know

New research confirms carbon neutrality targets cannot reverse wildfire risk

A major study from South Korea’s Pohang University of Science and Technology has overturned a core assumption in climate policy. Published in Science Advances, the research shows that reaching carbon neutrality will not reduce extreme wildfire risk. The findings matter because governments and businesses across the UK have built climate strategies around net zero targets. However, stopping new emissions does not reverse the atmospheric conditions that fuel catastrophic fires.

Professor Seung-Ki Min, who led the research team, found that preventing further fire danger requires net-negative emissions. This means actively removing carbon dioxide already in the atmosphere, not just halting new releases. For UK businesses facing supply chain disruption from global wildfires, the distinction carries real commercial consequences.

The research arrives as global fire patterns shift dramatically. During the March 2024 to February 2025 season, wildfires released over 8 billion tonnes of CO₂. This represents 9 percent above long-term averages. Notably, total burned area remained below average, yet emissions reached the sixth-highest level on record. Fires increasingly burn in carbon-dense forests and peatlands rather than grasslands, concentrating emissions even as fewer hectares burn.

How the study examined future fire conditions

The POSTECH team used climate simulations to model two distinct pathways. The first scenario achieved net-zero emissions but left existing atmospheric CO₂ untouched. The second scenario implemented net-negative strategies to lower atmospheric carbon concentrations actively.

Results showed stark differences. Under net-zero conditions, extreme fire danger remained high across many regions. Some low-latitude areas in the Northern Hemisphere saw danger increase. Meanwhile, net-negative conditions produced falling temperatures and rising humidity. These changes substantially reduced fire risk, particularly in already vulnerable regions.

The mechanism works through basic climate physics. Wildfires depend on temperature, humidity, and wind patterns. As temperatures climb and air dries, vegetation becomes increasingly flammable. Fires burn longer and spread faster. Carbon neutrality halts the worsening of these conditions but cannot reverse damage already done.

Professor Min explained the limitation clearly. Carbon neutrality stops further increases in fire risk. However, it cannot reverse the danger that has already intensified. Protecting communities and ecosystems requires going beyond carbon neutrality to achieve actual atmospheric carbon reduction.

Fire weather patterns show uneven regional impacts

The research reveals significant geographic variation in outcomes. Complementary analysis found that strong mitigation could reduce extreme fire weather days from 1.6 times historical levels to 25.7 days annually by century’s end. This represents a 21 percent reduction compared to business-as-usual projections.

Benefits distribute unevenly across the globe. Canada, Australia, and northern Russia could see extreme fire weather decrease by more than 5 days per year. Conversely, the western United States, Brazil, Bangladesh, and India face projected increases due to declining precipitation patterns.

A separate concern emerges from the State of Wildfares report published in Earth System Science Data. Global extreme fire weather shows increasing synchronicity. Strong correlation patterns now link South America and Southern Africa, both major carbon emission hotspots. When multiple regions face severe fire seasons simultaneously, international firefighting resources become overwhelmed.

Bolivia experienced emissions more than four times above average during the recent season. Canada saw levels three times above normal. Brazil and Venezuela recorded emissions 50 percent higher than typical years. These concentrated regional events strain global response capacity and create cascading supply chain disruptions for UK importers.

Three pathways to remove atmospheric carbon

Achieving net-negative emissions requires technologies and practices that actively extract CO₂ from the atmosphere. The POSTECH research identifies three primary approaches, each with distinct timescales and deployment challenges.

Carbon capture and storage technologies include direct air capture systems and point-source capture at industrial facilities. These technologies remain expensive and energy-intensive. However, costs are falling as deployment scales increase. For UK manufacturers, early adoption may become competitively advantageous as carbon removal becomes mandatory in supply chains.

Carbon removal technologies encompass enhanced weathering, biochar production, and ocean alkalinity enhancement. Enhanced weathering spreads crushed silicate rocks on agricultural land, where natural processes convert CO₂ into stable carbonates. Biochar involves heating organic waste without oxygen to create stable carbon that improves soil while sequestering emissions. These approaches often deliver co-benefits like improved crop yields.

Nature-based solutions include forest restoration, wetland protection, and reforestation programs. These methods sequester carbon while providing ecosystem services like flood management and biodiversity protection. For UK businesses pursuing biodiversity net gain requirements, nature-based carbon removal can address multiple compliance objectives simultaneously.

Critically, current policy frameworks remain insufficient. Professor Min characterizes carbon neutrality as a starting point for climate action, not an endpoint. Turning off a tap does not remove water that has already overflowed. Similarly, halting emissions alone cannot reverse climate impacts already underway.

Projected increases in fire frequency and severity

Recent analyses project concerning trajectories without aggressive mitigation action. Southern California now faces extreme fire weather at least twice as likely due to climate change. The area burned has increased by a factor of 25. The Congo Basin has seen extreme fire weather become 3 to 8 times more likely, with burned area increasing 2.7-fold.

Looking forward, fire seasons comparable to 2024-2025 could occur 57 percent more frequently in tropical regions by 2100 under medium-high emissions pathways. Strong mitigation could limit increases below 15 percent, demonstrating that climate action meaningfully alters future risk trajectories.

For the United States specifically, modeling indicates that each 1°C temperature increase would raise median annual burned area by up to 600 percent in some western forest types. The Southeastern United States faces projections of at least 30 percent more lightning-ignited wildfires by 2060.

These projections carry direct implications for UK businesses with North American operations or supply chains. Timber imports, agricultural commodities, and manufacturing inputs face increasing disruption risk. Insurance costs for facilities in fire-prone regions continue climbing. Business continuity planning must now account for wildfire scenarios previously considered extreme outliers.

Commercial and operational consequences for UK businesses

The research findings create several immediate business planning challenges. Supply chain resilience strategies built on geographic diversification may need revision. If fire risk cannot be mitigated through carbon neutrality alone, then supplier facilities in vulnerable regions face persistent long-term threats regardless of emissions reduction progress.

Commodity price volatility will likely increase as wildfires disrupt production more frequently. Agricultural products, timber, and minerals from fire-prone regions face supply uncertainty. UK importers should evaluate alternative sourcing options and consider inventory strategies that buffer against seasonal disruption.

Insurance and risk management require updated modeling. Current risk assessments often assume that achieving net-zero targets will gradually reduce extreme weather exposure. The POSTECH research demonstrates this assumption underestimates future fire risk. Businesses should review property insurance coverage for facilities in vulnerable regions and assess whether current policies adequately reflect the new risk landscape.

Public procurement criteria increasingly require suppliers to demonstrate climate action beyond carbon reporting. UK government buyers now evaluate resilience to climate impacts as part of tender assessments. Suppliers that can demonstrate adaptation strategies for wildfire risk may gain competitive advantages in bidding processes.

Investment decisions around long-lived assets need fresh evaluation. Infrastructure, facilities, and equipment in fire-prone regions face decades of heightened risk. Financial modeling should incorporate scenarios where fire danger remains elevated despite achieving carbon neutrality targets. Return-on-investment calculations may need adjustment to reflect higher insurance costs, potential asset loss, and operational disruption.

What businesses should consider now

UK companies can take several practical steps to address the gap between carbon neutrality and actual risk reduction. First, supply chain mapping should identify tier-one and tier-two suppliers in regions facing increased fire weather. Understanding exposure allows informed decisions about diversification, inventory levels, and contingency planning.

Second, procurement strategies should evaluate supplier resilience to climate impacts, not just carbon emissions. A supplier with strong carbon reporting but facilities in high-risk locations may present greater business continuity risk than alternatives. Tender responses should request information about climate adaptation measures alongside emissions data.

Third, businesses should review insurance coverage for adequacy given the new risk assessment. Policies based on historical loss data may underestimate future claims. Gap analysis between current coverage and projected risk can inform decisions about additional protection or self-insurance reserves.

Fourth, companies with operations or assets in fire-prone regions should develop specific wildfire preparedness plans. These should address employee safety, asset protection, and operational continuity. Plans should coordinate with local emergency services and include clear communication protocols for stakeholders.

Fifth, organizations pursuing net-zero commitments should consider incorporating carbon removal into their strategies now rather than later. As the POSTECH research makes clear, emissions reduction alone will not sufficiently reduce climate risks. Carbon reporting programs that include credible removal strategies may become the baseline expectation for large contracts and public sector procurement.

Sixth, businesses should engage with industry peers and trade associations to understand sector-specific implications. Collaborative approaches to supply chain resilience and carbon removal can spread costs and accelerate solutions. Industry-wide standards for climate adaptation may emerge as understanding of these risks improves.

Five critical facts about wildfire risk and carbon policy

• Carbon neutrality stops atmospheric CO₂ from increasing but does not reverse existing accumulation, leaving fire danger at elevated levels indefinitely.
• Net-negative emissions strategies that actively remove atmospheric carbon can reduce fire risk by lowering temperatures and increasing humidity in vulnerable regions.
• Recent wildfire seasons released over 8 billion tonnes of CO₂ despite below-average burned area because fires increasingly occur in carbon-dense forests and peatlands.
• Strong mitigation could limit increases in extreme fire weather to below 15 percent by 2100, while business-as-usual approaches lead to 57 percent more frequent extreme seasons in tropical regions.
• Geographic patterns show uneven impacts, with Canada, Australia, and northern Russia benefiting most from emissions reductions, while the western United States, Brazil, and parts of Asia face increased risk from changing precipitation.

Practical next steps for managing climate-driven fire risk

Businesses should begin by conducting a materiality assessment of wildfire exposure across their value chain. This involves mapping supplier locations, identifying critical single-source dependencies, and evaluating whether alternative suppliers exist in lower-risk regions. The assessment should extend beyond direct suppliers to include key tier-two relationships, as disruption often cascades through supply networks.

Risk management processes need updating to reflect the persistence of fire danger despite carbon neutrality achievements. Scenario planning should include cases where extreme fire seasons occur with increasing frequency over the next two decades regardless of global emissions reductions. Financial planning should account for potential asset losses, increased insurance premiums, and operational disruption costs.

Organizations should also evaluate opportunities to contribute to carbon removal directly. Nature-based solutions like woodland creation and peatland restoration can deliver carbon sequestration while supporting UK biodiversity targets. Companies with land holdings or offsetting budgets might redirect resources toward projects that actively remove atmospheric carbon rather than simply avoiding emissions.

For businesses seeking public sector contracts, demonstrating climate resilience increasingly matters for procurement outcomes. Sustainable procurement strategies should address both emissions reduction and adaptation to climate impacts. Tender responses that articulate specific approaches to managing wildfire risk in supply chains may strengthen competitive positioning.

Communication with stakeholders should acknowledge the gap between carbon neutrality and actual risk reduction. Investors, customers, and employees increasingly understand climate risks affect business performance. Transparent discussion of wildfire exposure and mitigation strategies builds trust and demonstrates management competence in addressing material risks.

Where to find authoritative guidance and data

The UK government provides climate risk assessment tools and guidance through the Department for Energy Security and Net Zero. Resources include adaptation planning frameworks and sector-specific climate risk analyses relevant to UK businesses operating globally.

The original POSTECH research appears in Science Advances, a peer-reviewed journal published by the American Association for the Advancement of Science. The Science Advances website provides access to the full study methodology and regional projections.

The State of Wildfires report, published in Earth System Science Data, offers comprehensive global fire tracking and analysis. The Earth System Science Data journal makes the full report available with detailed regional breakdowns and methodology.

For UK-specific climate risk information, the Met Office climate change portal provides data on UK climate projections and links to international climate science. This resource helps businesses understand how global climate shifts affect UK operations and supply chains.

The European Space Agency’s Climate Office publishes regular updates on global wildfire patterns and climate attribution studies. These resources help businesses track emerging risks in regions relevant to their operations.