Wildfires are the exhaust of a loop that has already closed.

UNEP's fire assessment projects extreme landscape fires to rise 14 percent by 2030, 30 percent by 2050, and 50 percent by the end of the century, driven by the intersection of warming and land-use change. The 2023 Canadian season showed what the tail looks like: roughly 18.5 million hectares burned and about 480 megatonnes of CO₂ released — more than most countries' annual fossil emissions.

Fire damage now arrives through three channels at once. The emissions feed the carbon cycle. The smoke is a public-health event: PM2.5 from wildfire smoke travels across continents and drives mortality far from the flame front. And the insured losses land on property markets: Munich Re counted 2024 as the third most expensive year for insured natural catastrophe losses since 1980, with floods, wildfires, and severe thunderstorms — the "non-peak" perils — contributing $136 billion in total losses.

The most dangerous feedback in the current polycrisis is social. Economic turmoil — inflation, debt, resource scarcity — creates grievances and institutional openings that populist leaders exploit. Those leaders consolidate power by scapegoating foreigners and minorities, weakening the rule of law, and decoupling their economies from the world system. Decoupling worsens the economic turmoil, which deepens the grievances, which strengthens the leaders. The Cascade Institute traces this loop operating over the past decade in Venezuela, Nicaragua, Russia, Turkey, Zimbabwe, Myanmar, and Sri Lanka.

The loop then escapes the national container. Authoritarian regimes reduce their participation in international institutions, which weakens climate cooperation, which worsens extreme weather, which pushes migrants toward richer countries, which fuels the chauvinism that elected the authoritarians in the first place. Each turn of the loop raises the cost of the next turn. It is not inevitable — but it is the mechanism that would convert today's polycrisis into mass violence, and it is the loop this report watches most closely.

Heat, drought, and fire no longer arrive as separate events. The compound sequence — heat dries vegetation, drought extends the fire window, fire releases carbon that reinforces the heat — is the signature pattern of the current decade. Munich Re's 2024 record shows the same compounding in water: Valencia received a year's rainfall in a day, producing $11 billion in losses, $4.2 billion insured; hurricanes Helene and Milton together caused $94 billion in total losses within six weeks.

The cascades then propagate across domains. Drought cuts harvests, food prices rise, and the price shock lands hardest on the food-insecure countries the exposure dossier already flags. Floods destroy uninsured housing, displace households, and strain the cities that receive them. Attribution studies keep finding the same multiplier: World Weather Attribution concluded that climate change roughly doubled the likelihood of the Valencia rainfall intensity and of the southern Brazil floods. The event is local; the cause is systemic.

Of the $320 billion in 2024 disaster losses, only $140 billion was insured. The gap is not evenly distributed: Typhoon Yagi caused $14 billion in losses across the Philippines, China, Vietnam, and Myanmar, with $1.6 billion insured. The pattern repeats in every developing region — the countries carrying the heaviest exposure carry the least risk transfer.

The cascade then moves from households to sovereigns. When uninsured losses destroy assets, governments rebuild out of constrained budgets. The World Bank's International Debt Report 2024 recorded IDA-eligible countries paying a record $96.2 billion in external debt service in 2023 — money not available for adaptation. As losses rise and insurance retreats from high-risk markets, the protection gap widens, and the fiscal shock arrives earlier in every future disaster.

The Cascade Institute's framework points to three policy moves. First, focus on crisis interactions, not isolated crises — an integrated assessment of the full range of interlinked crises, because a policy that fixes one while worsening another is not a fix. Second, address system architecture, not just events — strengthen the dampening feedbacks, build buffers and firebreaks at sites of systemic vulnerability, and regulate systemically important institutions the way post-2008 financial reform did. Third, exploit high-leverage intervention points — in nonlinear systems, a small action aimed at the right node can produce outsized change, which is the logic behind the positive tipping points the Global Tipping Points Report maps in clean energy and nature regeneration.

Redundancy is the counter-intuitive prescription. The efficiency that built the modern economy stripped out the slack that used to absorb shocks. Resilience means deliberately reintroducing redundancy — diversified supply chains, buffered food reserves against simultaneous breadbasket failures, hardened communications against grid failure, and reduced wet-market and bushmeat contact against zoonotic spillover. In a hyper-connected system, redundancy is not waste. It is the firebreak that stops a domino from becoming a loop.