Finextra: Pricing the Unpriced

Nature is the most fundamental asset underpinning the global economy, yet it remains systematically excluded from financial decision-making. While climate risk has been progressively priced into markets, biodiversity and ecosystem services continue to be treated as externalities. This is no longer a theoretical gap. As nature loss accelerates, unpriced ecological risk is beginning to translate into material financial exposure. The challenge is not whether nature should be priced, but whether financial systems can adapt quickly enough to avoid embedding irreversible loss into economic value.

The asset the market cannot see

Modern financial systems are built to value what can be measured, standardised, and traded. Nature, despite underpinning more than half of global GDP, does not meet these criteria in its current form. Quantifying natural systems can be a complex cluster of several metrics that give some understanding of the overall impact and interplay these natural systems have throughout society. As a result, nature is treated as background rather than essential capital.

This invisibility is not benign. When a system fails to price an asset, it incentivises its depletion. The continued erosion of ecosystems is therefore not a market failure in the traditional sense, but a structural feature of how markets operate. Firms are rewarded for extracting value from nature (i.e. natural materials) while the costs of degradation are externalised to society and future generations.

The financial consequence is clear. Balance sheets overstate value by ignoring dependencies on natural systems, while risk models systematically underestimate exposure to ecological disruption. Nature is not absent from finance because it lacks value, but because that value has yet to be translated into a form the market can recognise.

Why nature has lagged behind climate

Climate change has followed a markedly different trajectory. The emergence of a single, comparable metric in greenhouse gas emissions enabled the rapid development of carbon markets, disclosure frameworks, and policy alignment. Investors could quantify exposure, regulators could mandate reporting, and companies could set targets.

Nature offers no such simplicity. Biodiversity is inherently multidimensional, encompassing species, habitats, and ecosystem functions that vary across geographies. Impacts are non-linear, often irreversible, and subject to tipping points that are difficult to predict. There is no single “unit” of nature loss that can be universally applied.

This complexity has delayed integration, but it does not justify inaction. Financial systems have instead defaulted to omission. In doing so, they have created a growing disconnect between ecological reality and economic valuation.

The structural barriers to pricing nature

Three structural barriers explain why nature remains unpriced.

1. First, environmental costs continue to be externalised. The degradation of ecosystems rarely appears in company accounts, allowing firms to operate without recognising the true cost of their activities. This distorts pricing signals and encourages overexploitation.

2. Second, measurement remains fragmented. While advances in spatial data, habitat assessment, and life cycle impact methodologies are improving the ability to quantify nature-related impacts, there is still no universally accepted framework that translates these insights into financial metrics. Without standardisation, integration into investment models and risk assessments remains limited.

3. Third, financial time horizons are misaligned with ecological processes. Biodiversity loss unfolds over decades, yet investment decisions are often driven by quarterly performance. Discounting practices further reduce the perceived importance of long-term ecological risk, effectively treating irreversible loss as economically negligible.

These barriers are not insurmountable, but they are deeply embedded within financial systems.

From hidden dependency to material risk

The consequences of ignoring nature are no longer abstract. They are emerging across multiple dimensions of financial risk.

Physical risks are becoming more pronounced as ecosystem degradation affects the availability of critical inputs such as water, raw materials, and stable climatic conditions. Supply chains are increasingly exposed to disruptions linked to land degradation, biodiversity loss, and ecosystem collapse.

Transition risks are also accelerating. Regulatory frameworks are evolving rapidly, with policies such as biodiversity net gain and broader nature-positive commitments beginning to reshape operating environments. Companies that fail to anticipate these shifts may face increased costs, stranded assets and operational constraints.

Reputational risks are intensifying as stakeholders demand greater transparency and accountability. Investors are beginning to scrutinise nature-related impacts in the same way they have for climate, and companies associated with biodiversity loss face growing pressure.

At a systemic level, the risk is more profound. According to the World Economic Forum, nature loss has the potential to undermine economic productivity, destabilise key sectors and expose financial institutions to unrecognised concentrations of risk. What remains unpriced does not remain unimportant. It becomes mispriced.