The human and institutional domains decide how fast the shocks travel.

The IEA counts 750 million people without electricity in 2023, the first year of renewed progress after the 2022 reversal, with about 600 million of them in Sub-Saharan Africa. Under stated policies, 645 million would still lack access in 2030, 85 percent in Sub-Saharan Africa. The clean-cooking gap is larger still: roughly 2.1 billion people cook with open fires or inefficient stoves, and household air pollution kills an estimated 2.9 million people a year.

Energy access matters for the polycrisis because it sets the floor under resilience. A household without electricity cannot run cooling during a heatwave, cannot refrigerate vaccines during an outbreak, and cannot participate in the digital economy that the other systemic domains depend on. The Global Tipping Points Report notes that three-quarters of people live in net fossil-fuel-importing countries — so the clean transition is simultaneously the energy-security fix and the development fix. The two agendas are the same agenda.

WHO's 2026 fact sheet puts bacterial antimicrobial resistance at more than 4.7 million associated deaths globally in 2021. About one in six laboratory-confirmed bacterial infections worldwide were resistant to antibiotics in 2023, and resistance rose in over 40 percent of monitored pathogen–antibiotic combinations between 2018 and 2023. The economic cost compounds on the health cost: treating resistant bacterial infections alone is projected to reach $412 billion annually to 2035, with another $443 billion in productivity losses each year.

AMR is a polycrisis problem because its drivers are the other domains. Poor WASH access spreads resistant pathogens; overuse in agriculture ties it to the food system; weak health systems in the exposure epicentre make it worse fastest. The resistance gradient is the exposure gradient — highest in South-East Asia and the Eastern Mediterranean, where one in three reported infections is resistant. And AMR feeds back into the system it came from: a world where routine surgery and chemotherapy become dangerous again is a world with a smaller economy and a larger disease burden, in a loop that compounds on itself.

The World Bank's International Debt Report 2024 recorded IDA-eligible countries — the world's poorest — paying a record $96.2 billion in external debt service in 2023. Every dollar of that service is a dollar not spent on water systems, clean cooking, health surveillance, or disaster recovery. When a shock lands, the countries with the least fiscal space absorb it with the fewest buffers.

The fiscal cascade connects directly to the insurance cascade on the previous page. Uninsured disaster losses force governments to borrow; borrowing raises debt service; debt service narrows the room for prevention, which guarantees larger uninsured losses next time. Breaking that loop requires the kind of concessional finance and debt-for-resilience swaps the Global Tipping Points Report identifies as the enabling condition for positive tipping points in the Global South.

The information system is being revolutionized by artificial intelligence, with implications for employment, decision-making, and national security that the Cascade Institute describes as unclear but likely unprecedented. On one edge, AI accelerates the crisis: algorithmic trading speeds financial contagion, generative disinformation amplifies informational contagion, and AI-driven cyber-offense lowers the cost of attacking critical infrastructure. On the other edge, AI accelerates the response: better climate models, faster drug discovery against AMR, smarter grid management, and the digital public infrastructure that delivers services in fragile states.

The same double edge applies to digital infrastructure generally. Digital insecurity can trigger market panic and liquidity crises, but digital public infrastructure is also the delivery layer for resilience — payments, health records, early-warning systems, and social transfers. The deciding variable is governance: who controls the infrastructure, and whether it is hardened before the shock rather than after it. A digital system optimized for efficiency and left unhardened is a contagion vector; the same system designed with redundancy is a firebreak.

The World Economic Forum's diagnosis — that the "currency of cooperation" is depreciating — names the binding constraint. The polycrisis demands unprecedented multilateral action precisely when trust between major powers has evaporated into a zero-sum mentality. Societal polarization and democratic erosion convert economic strain into institutional breakdown: when a governance structure fails on one crisis, it loses the legitimacy needed to manage all the others. That is institutional contagion, and it is the reason each failed response raises the cost of every future response.

Demographics cut both ways through this stress. Aging high-income economies face fiscal erosion as the ratio of workers to retirees falls; young, fast-growing regions carry the heaviest climate exposure and the thinnest institutions. Forcible displacement — 122.1 million people — sits at the intersection, straining receiving institutions while the political reaction to migration fuels the very polarization that blocks cooperative solutions. The demographic transition is not a separate crisis; it is the slow stress that shallows the basin under all the others.

The polycrisis narrative is pessimistic by construction, but the same system properties that create cascading failure also create cascading opportunity. The counter-narrative — sometimes called "polytunity" — reads the breakdown of legacy systems as a generational opening to rebuild global architecture around equity, decarbonization, and resilience. The evidence supports the non-obvious version of the claim: nonlinear systems respond disproportionately to small, well-aimed interventions. The Global Tipping Points Report documents positive tipping points already firing — solar and electric-vehicle cost curves, contagious climate litigation, nature regeneration — where a minority of actors is tipping the majority.

The strategy follows the same grammar as the risk. Build dampening feedbacks where positive loops now run. Add redundancy where efficiency has stripped the slack. Target the leverage points where a small intervention propagates. And weight every policy by the size of the exposure stack it reduces, not by the single indicator it moves. The polycrisis cannot be un-happened. It can be re-routed.

The H Heuristics exposure dossier established the human half of this map: air pollution, unsafe water, extreme poverty, heat stress, hunger, disease, and displacement stack in the same households, concentrated in roughly two to three billion people, mostly in Sub-Saharan Africa and South Asia. The same countries surface at the bottom of every table — the Central African Republic, Chad, South Sudan, Somalia, the Democratic Republic of the Congo, Sierra Leone, Afghanistan, Yemen.

This report is the systems half of the same claim. The earth-system domains generate the hazards, the secondary impacts transmit them, and the systemic domains decide how fast they reach the exposure epicentre. The full polycrisis is the two halves joined: a connected earth-and-financial system whose shocks concentrate on the people least able to absorb them.