Our Financial System Is Working On A False Assumption That Nature Is Stable

The global financial system is built on a dangerous illusion: that nature will always remain stable, providing resources and absorbing shocks indefinitely. A new analysis from Forbes reveals that climate change and biodiversity loss are driving systemic risks to trade, supply chains, and financial stability, exposing the flawed assumption of environmental stability embedded in economic models.

For decades, financial models treated nature as a free, inexhaustible resource. Economists assumed that ecosystem services—from pollination to water purification—would remain constant. But that assumption is now cracking under the weight of accelerating climate disruptions, species extinction, and land degradation. The article, authored by Nina Seega, argues that nature’s instability is no longer an externality; it is a direct threat to the solvency of banks, insurers, and entire economies.

The core issue is that pricing mechanisms fail to account for the depletion of natural capital. When a forest is cleared or a coral reef bleaches, the loss is invisible on balance sheets. Yet these losses cascade through supply chains: agricultural output falls, raw material costs spike, and insurance claims rise. The World Economic Forum estimates that more than half of global GDP—over $44 trillion—is moderately or highly dependent on nature. That dependence means any large-scale ecological shock translates into financial contagion.

Central banks are waking up to this reality. The Bank of England and De Nederlandsche Bank have begun stress-testing their financial systems against scenarios of nature loss. The Taskforce on Nature-related Financial Disclosures (TNFD), launched in 2021, has attracted over 200 institutions committed to reporting nature-related risks. Yet these initiatives remain nascent. Most financial models still assume a stable natural world, relying on historical data that no longer holds.

The implications are stark. If nature continues to be treated as a constant, sudden ecosystem collapses could trigger asset write-downs, credit rating downgrades, and sovereign debt crises. The insurance sector is already feeling the pressure: global insured losses from natural catastrophes hit $130 billion in 2023, a figure likely to rise as biodiversity loss amplifies climate impacts. Analysts warn that the next financial crisis could be triggered not by subprime mortgages, but by the unraveling of nature itself.

Looking ahead, expect regulatory frameworks to evolve rapidly. The TNFD is pushing for mandatory disclosure standards akin to those for climate risk. The EU’s Corporate Sustainability Reporting Directive already requires companies to report on biodiversity impact. Investors are beginning to demand nature-positive portfolios. The financial system must shed its false assumption of nature stability and embrace a new paradigm that prices ecological risks. The cost of inaction is far greater than the cost of adjustment.